amirah farhanah amirudin, izzatul aliaa badaruddin, munirah md mansor, mohd rizal abdul manaf, hanita othman, wan muhammad azfar wan shuaib.  (2024).  prognostic value of triglyceride-fasting glucose (tyg) index in myocardial infarction.  - clinica chimica acta.  1. 

kurubaran ganasegeran, mohd rizal abdul manaf, nazarudin safian, lance a. waller, feisul idzwan mustapha, khairul nizam abdul maulud, muhammad faid mohd rizal.  (2024).  how socio-economic inequalities cluster people with diabetes in malaysia: geographic evaluation of area disparities using a non-parameterized unsupervised learning method.  - journal of epidemiology and global health.  169-183. 

rozmi ismail, azmawati mohammed nawi, mohd rizal abdul manaf, mohd rohaizat hassan, hilwa abdullah mohd, norhayati ibrahim, iskandar hassan tan abdullah, shafiin shukor.  (2023).  risk and protective factors in predicting drug and substance abuse among malaysian youths.  - addicta: the turkish journal on addictions.  23-33. 

amirudin sanip, mohd hisham mohd isa, azlan helmy abd samat, mohd johar jaafar, mohd rizal abdul manaf, meilya silvalila, ismail mohd saiboon.  (2023).  fit-cardiopulmonary resuscitation approach in public mass cardiopulmonary resuscitation teaching.  - saudi medical journal.  462-470. 

nur ayub ma, el-ansary d, mohd ramzisham ar, suriah a, royse c, chong th, mohamad arif mn, jeswant d, royse a, hairulfaizi haron, muhamad ishamudin i, mohd rizal am, katijjahbe ma.  (2023).  early supervised incremental resistance training (espirit) following cardiac surgery via a median sternotomy: a study protocol of a multicentre randomized controlled trial.  - bmj open.  1-11. 

mohd rizal abdul manaf, kurubaran ganasegeran, nazarudin safian, lance a. waller, feisul idzwan mustapha, khairul nizam abdul maulud, muhammad faid mohd rizal.  (2023).  how spatial structure of diabetes changed with urban population growth and density in malaysia?.  - journal of health science and medical research.  64. 

wan abdul hannan wan ibadullah, nazarudin safian, mohd rizal abdul manaf, mohd 'ammar ihsan ahmad zamzuri, juliana mansor, shamsul azhar shah.  (2023).  cost-effectiveness of community-based hypertension prevention programs: a systematic review.  - international medical journal.  61-68. 

kiran ganesh balakrishnan, mohd rizal abdul manaf, azizul rahman mohamad jamil.  (2023).  a review on prediction models of influenza viral infection.  - journal of health science and medical research.  69. 

kazi majidur rahaman, rabani remli, hui jan tan, norlaila mustafa, mohd rizal abdul manaf, chen fei ng.  (2023).  the association of vitamin d level with diabetic peripheral neuropathy: a comparative cross-sectional study.  - neurology asia.  633-671. 

puteri sofia nadira megat kamaruddin, azmawati mohammed nawi, mohd rizal abdul manaf, mohamad nurman yaman, abdul muizz abd malek.  (2023).  a meta-analysis of ehealth interventions on ischaemic heart disease health outcomes.  - global heart.  1-19. 

thinakaran kandayah , nazarudin safian, shamsul azhar shah, mohd rizal abdul manaf.  (2023).  challenges in the management of sarcopenia in the primary care setting: a scoping review.  - international journal of environmental research and public health.  1-9. 

norizzati amsah, zaleha md isa, norfazilah ahmad, mohd rizal abdul manaf.  (2023).  impact of covid-19 pandemic on healthcare utilization among patients with type 2 diabetes mellitus: a systematic review.  - international journal of environmental research and public health.  1-15. 

nurhusna a, hakim na, raflis ra, aina en, mohd rizal am, abdullah suhaimi sn.  (2023).  daycare and inpatient hemithyroidectomy: a cost minimisation and safety study - hospital kuala lumpur malaysia experience.  - iium medical journal of malaysia.  24-30. 

sharifah saffinas syed soffian, azmawati mohammed nawi, rozita hod, mohd rizal abdul manaf, huan-keat chan, muhammad radzi abu hassan.  (2022).  disparities in recommendations for colorectal cancer screening among average-risk individuals: an ecobiosocial approach.  - risk management and healthcare policy.  1025-1043. 

siti munirah abdul basir, zahara abdul manaf, fatin hanani mazri, arimi fitri mat ludin, suzana shahar and mohd rizal abdul manaf.  (2022).  description of a hybrid mindfulness integrated multidisciplinary workplace weight management intervention module mindslimshape using the tidier checklist.  - nutrients.  1-13. 

siti munirah abdul basir, zahara abdul manaf, norhayati mohd. noor, arimi fitri mat ludin, suzana shahar and mohd rizal abdul manaf.  (2022).  the challenges and strategies towards healthy eating during covid-19 home confinement period among working adults with bmi 25 kg/m2 enrolled in a weight loss program: qualitative findings.  - international journal of environmental research and public health.  1-14. 

mazni baharom, norfazilah ahmad, rozita hod, mohd rizal abdul manaf.  (2022).  dengue early warning system as outbreak prediction tool: a systematic review.  - risk management and healthcare policy.  871-886. 

mohd helma rusyda, nor ba'yah abdul kadir, wan nur khairunnisa ismail, siti jamiaah abdul jalil, nurul-azza abdullah, arena che kasim, suzana mohd. hoesni, mohd rizal abdul manaf.  (2022).  identifying the psychometric properties of the malay version of the whoqol bref among employees with obesity problem.  - international journal of environmental research and public health.  1-14. 

nor ba`yah abdul kadir, rusyda helma mohamed, wan nur khairunnisa ismail, siti jamiaah abdul jalil, nurul-azza abdullah, arena che kasim, suzana mohd. hoesni, mohd rizal abdul manaf.  (2022).  sustaining the quality of life for university employees with obesity using mindfulness activities and work engagement: a quasi-experimental design.  - sustainability.  1-13. 

essam ali al-sanaani, aniza ismail, mohd rizal abdul manaf, leny suzana suddin, norlaila mustafa, norlela sukor alabed ali a. alabed, ahmed abdelmajed alkhodary, syed mohamed aljunid.  (2022).  health insurance status and its determinants among patients with type 2 diabetes mellitus in a tertiary teaching hospital in malaysia.  - plos one.  1-17. 

shuet ching neong, zaleha md isa, mohd rizal haji abdul manaf.  (2022).  emotional intelligence and organisational culture: a systematic literature review.  - journal of pharmaceutical negative results.  1582-1592. 

jamilah yusof, aniza ismail, mohd rizal abd manaf, fuad ismail, norlia abdullah, rohaizak muhammad, shahrun niza abdullah suhaimi and reena rahayu mat zin.  (2022).  quality of life of women with breast cancer in a tertiary referral university hospital.  - health and quality of life outcomes.  1-13. 

mohammad z, ibrahim aa, ismail r, abdul manaf mr.  (2022).  the fate of a military pilot in malaysia: lingering on the ground after young stroke.  - international journal of occupational safety and health.  54-58. 

khadijah alavi, rosnah sutan, suzana shahar, mohd rizal abdul manaf, mohd hasni jaafar, khairul nizam abdul maulud, zaini embong, kamarul baraini keliwon, ruzian markom.  (2022).  connecting the dots between social care and healthcare for the sustainability development of older adult in asia: a scoping review.  - sustainability.  1-17. 

ariff azfarahim ibrahim, mohd ammar ihsan ahmad zamzuri, rosnah ismail, ahmad husni ariffin, aniza ismail, muhamad hazizi muhamad hasani, mohd rizal abdul manaf.  (2022).  the role of electronic medical records in improving health care quality: a quasi-experimental study.  - medicine.  1-5. 

rozmi ismail, mohd rizal abdul manaf, mohd rohaizat hassan, azmawati mohammed nawi, norhayati ibrahim, novel lyndon, noh amit, ezarina zakaria, muhammad ajib abd razak, norshaffika izzaty zaiedy nor, md shafiin shukor, aimi fadzirul kamarubahrin..  (2022).  prevalence of drug and substance use among malaysian youth: a nationwide survey.  - international journal of environmental research and public health.  1-15. 

nooryian yahya, shuhaila ahmad, nor azlin mohamed ismail, noor sham yahya luddin, azmi mohd tamil and mohd rizal abdul manaf.  (2022).  development of a normal range for first trimester pregnancy intracranial translucency measurements.  - malaysian journal of public health medicine.  267-274. 

wan muhammad azfar wan shuaib, nor azlin mohamed nor, mohd rizal abd manaf, hanita othman.  (2022).  uric acid: friend or foe?.  - iium medical journal malaysia.  122-130. 

ariff azfarahim ibrahim, mohd rizal abdul manaf, noor hassim ismail.  (2022).  the determinants of undiagnosed hypertension among urban community of kuala lumpur, malaysia.  - iranian journal of public health.  1323-1330. 

nor ba`yah abdul kadir , wan nur khairunnisa ismail, nurul-azza abdullah, rusyda helma, siti jamiaah abdul jalil, arena che kasim, suzana mohd.hoesni, mohd. rizal abdul manaf.  (2021).  criterion validity and psychometric properties of a malay version of the short multidimensional inventory lifestyle evaluation-confinement (smile-c) in a sample of university staff with weight problem.  - international journal of environmental research and public health.  1-9. 

naim syahidah zulkafli, suria hayati md pauzi, asmazila baharum, mohamad nasir shafiee, mohd rizal abdul manaf, sharifah noor akmal s.h. shahabudin, nurismah md isa.  (2021).  high risk-hpv dna test and association with cyto-histopathological finding of cervical neoplasia: an audit study.  - malaysian journal of pathology.  466. 

vijayaletchumi thandayathany, shuhaila ahmad, mohd rizal haji abdul manaf , nor azlin mohamed ismail.  (2021).  detection of foetal anomaly in advanced maternal age.  - medical journal of malaysia.  833-836. 

azmawati mohammed nawi, rozmi ismail, fauziah ibrahim, mohd rohaizat hassan, mohd rizal abdul manaf, noh amit, norhayati ibrahim and nurul shafini shafurdin.  (2021).  risk and protective factors of drug abuse among adolescents: a systematic review.  - bmc public health.  1-15. 

m rizal a manaf, md al-amin shaharuddin, azmawati md nawi, noorlaili m tauhid, hanita o, m rizam a rahman, hanizah m yusoff, nazarudin safian, pei y n, zahara a manaf, nor bayah a kadir, kevina y, s munirah a basir, sowmya r, m izhar ariff, kurubaran g..  (2021).  perceived symptoms of depression, anxiety and stress amongst staff in a malaysian public university: a workers survey.  - international journal of environmental research and public health.  1-13. 

md rizal a manaf, azmawati md nawi, noorlaili md tauhid, hanita othman, md rizam a rahman, hanizah md yusoff, nazarudin safian, pei yuen ng, zahara a manaf, nor bayah a kadir, kevina y, siti munirah a basir, sowmya r, md izhar ariff, kurubaran g.  (2021).  factors associated with health related quality of life amongst employees in a malaysian public university.  - international journal of environmental research and public health.  1-19. 

abdul rahman ramdzan, mohd rizal abdul manaf, azimatun noor aizuddin, zarina a. latiff, keng wee teik, gaik-siew ch'ng, kurubaran ganasegeran, syed mohamed aljunid.  (2021).  cost-effectiveness of colorectal cancer genetic testing.  - international journal of environmental research and public health.  1-17. 

kurubaran ganasegeran, chee peng hor, mohd fadzly amar jamil, purnima devi suppiah, juliana mohd noor, norshahida abdul hamid, deik roy chuan, mohd rizal abdul manaf, alan swee hock chng and irene looi.  (2021).  mapping the scientific landscape of diabetes research in malaysia (2000-2018): a systematic scientometrics study.  - international journal of environmental research and public health.  1-20. 

nur suhada ramli, mohd rizal abdul manaf, mohd rohaizat hassan , muhamad izwan ismail and azmawati mohammed nawi.  (2021).  effectiveness of colorectal cancer screening promotion using e-media decision aids: a systematic review and meta-analysis.  - international journal of environmental research and public health.  1-19. 

nur ayub ma, suriati ms, muhammad ishamuddin i, hairulfaizi h, fahmi pa, mohamad arif mn, mohd ramzisham ar, mohd rizal am, katijjahbe ma.  (2021).  trajectory of change in erectile dysfunction symptoms following coronary artery bypass surgery in malaysian population.  - iium medical journal malaysia.  45-51. 

mohd rizal a. manaf, azmawati md nawi, noorlaili md tauhid, hanita othman, md rizam a. rahman, hanizah md yusoff, nazaruddin safian, pei yuen ng, zahara a. manaf, nor bayah abd kadir, kevina yanasegaran, siti munirah abd basir, sowmya r., kurubaran g..  (2021).  prevalence of metabolic syndrome and its associated risk factors among staffs in a malaysian public university.  - scientific reports.  1-11. 

nur syakirah awai, kurubaran ganasegeran, mohd rizal abdul manaf.  (2021).  prevalence of workplace bullying and its associated factors among workers in a malaysian public university hospital: a cross-sectional study.  - risk management and healthcare policy.  75-85. 

lavanyah sivaratnam, azmawati mohammed nawi, mohd rizal abdul manaf.  (2020).  an evidence-based clinical pathway for the diagnosis of tuberculous lymphadenitis: a systematic review.  - international journal of mycobacteriology.  107-115. 

khalid mokti, zaleha isa, mohd rizal abdul manaf, firdaus hayati, syed sharizman syed abd rahim.  (2020).  nutritional burden in tuberculosis and inter-sectoral nutritional management for tuberculosis patients in malaysia.  - turkiye klinikleri journal of medical sciences.  83-95. 

sowmya ramakrishnan, siddharthan selvaraj, zaleha md isa, mohd rizal abdul manaf, naresh bhaskar raj.  (2020).  weight reducing interventions for overweight and obese employees.  - european journal of molecular & clinical medicine.  835-844. 

abdul rahman ramdzan, mohd rizal abdul manaf, azimatun noor aizuddin, syed mohamed aljunid.  (2020).  cost analysis of screening colorectal cancer in a tertiary hospital.  - journal of health science and medical research.  61. 

muhammad fikri bin azmi, azimatun noor aizuddin, mohd rizal abdul manaf.  (2020).  macroeconomics of cardiovascular disease: a review of modelling approaches.  - journal of health science and medical research.  46. 

azliza ibrahim ,raja affendi raja ali, mohd rizal abdul manaf, norfazilah ahmad, farah waheeda tajurruddin, wong zhi qin, siti hajar md desa, norlinah mohamed ibrahim.  (2020).  multi-strain probiotics (hexbio) containing mcp bcmc strains improved constipation and gut motility in parkinsons disease: a randomised controlled trial.  - plos one.  1-17. 

abdul rahman ramdzan, mohd rizal abdul manaf, azimatun noor aizuddin, ch'ng gaik siew, syed mohamed aljunid.  (2020).  cost-effectiveness analysis of colorectal cancer genetic testing.  - journal of health science and medical research.  39. 

ani amelia zainuddin, sonia regina grover, nur azurah abdul ghani, loo ling wu, rahmah rasat, mohd rizal abdul manaf, khadijah shamsuddin, zaleha abdullah mahdy.  (2020).  health-related quality of life of female patients with congenital adrenal hyperplasia in malaysia.  - health and quality of life outcomes.  258-266. 

essam ali al-sanaani, aniza ismail, mohd rizal abdul manaf, leny suzana binti sudin, norlaila mustafa, norlela sukor.  (2020).  profile findings of insured and uninsured diabetes mellitus type 2 patients at university kebangsaan malaysia specialist center in malaysia.  - journal of health science and medical research.  73. 

muhammad adam adman, jamal hisham hashim, mohd rizal abdul manaf, dan norback.  (2020).  associations between air pollutants and peak expiratory flow and fractional exhaled nitric oxide in students.  - international journal of tuberculosis and lung disease.  189-195. 

mohd ihsanuddin abas, muhammad zulfakhar zubir, muhammad faiz mohd ishak, noor hazmi noor hassim, mohd fathulzhafran mohamed hanan, andrea banyu-lin, mohd rizal abdul manaf, aniza ismail, amrizal muhd nur, syed mohamed aljunid.  (2020).  patients' characteristics and outcomes analysis of copd readmissions in a teaching hospital in kuala lumpur, malaysia.  - international medical journal.  705-708. 

kurubaran ganasegeran, chee peng hor, mohd fadzly amar jamil, hong chuan loh, juliana mohd noor, norshahida abdul hamid, purnima devi suppiah, mohd rizal abdul manaf, alan swee hock chng, irene looi.  (2020).  a systematic review of the economic burden of type 2 diabetes in malaysia.  - international journal of environmental research and public health.  1-23. 

mohd fadhli mohd fauzi , hanizah mohd yusoff, nur adibah mat saruan, rosnawati muhamad robat, mohd rizal abdul manaf, maisarah ghazali.  (2020).  fatigue and recovery among malaysian doctors: the role of work-related activities during non-work time.  - bmj open.  1-10. 

ani amelia zainuddin, sonia regina grover, chong hong soon, nur azurah abdul ghani, zaleha abdullah mahdy, mohammad rizal abdul manaf, khadijah shamsuddin.  (2020).  a multicenter cross-sectional study of malaysian females with congenital adrenal hyperplasia: their body image and their perspectives on feminizing surgery.  - journal of pediatric and adolescent gynecology.  477-483. 

sharul rizam samsury, nor azlin mohamed ismail, anizah ali, rosmaliana zulkifli, mohd rizal abdul manaf, yong junina fadzil, dyah ekashanti octorina dewi.  (2019).  application of z-score among reported normal cardiac structure on foetal echocardiography assessment.  - the medical journal of malaysia.  9. 

muhammad aklil abd rahim, fadzrul hafiz johani, shamsul azhar shah, mohd rohaizat hassan,mohd rizal abdul manaf.  (2019).  13c-urea breath test accuracy for helicobacter pylori infection in the asian population: a meta-analysis.  - annals fo global health.  1-10. 

mohd fadhli mohd fauzi, hanizah mohd yusoff, mohd rizal abd manaf, nazarudin safian, muhammad aklil abd rahim, mohd faizal madrim, azman atil @ azmi, ammar amsyar abdul haddi and nur adibah mat saruan.  (2019).  intervention for occupational fatigue and sleepiness among healthcare workers working in shift: a systematic review.  - malaysian journal of public health medicine.  47-53. 

naren kumar surendra, mohd rizal abdul manaf, lai seong hooi, sunita bavanandan, fariz safhan mohamad nor, shahnaz shah firdaus khan, ong loke meng, abdul halim abdul gafor.  (2019).  cost utility analysis of end stage renal disease treatment in ministry of health dialysis centres, malaysia: hemodialysis versus continuous ambulatory peritoneal dialysis.  - plos one.  1-16. 

pui ling thong, sau wei wong, mohd rizal abdul manaf, ming lee lee, kanaheswari yoganathan.  (2019).  health-related quality of life in paediatric spina bifida.  - medical journal of malaysia.  281-287. 

hirman ismail, mohd rizal abdul manaf, abdul halim abdul gafor, zaki morad mohamad zaher, adriana irawati nur ibrahim.  (2019).  international comparisons of economic burden of end stage renal disease to the national healthcare systems.  - international medical journal of malaysia.  188-196. 

shahrir, sn, abdul manaf, mr, mustapha, fi, md. isa, z.  (2019).  critical review on dietary sodium reduction policies in malaysia.  - international food research journal.  33-40. 

shaanthana subramaniam, chin-yi chan, ima-nirwana soelaiman, norazlina mohamed, norliza muhammad, fairus ahmad, mohd rizal abd manaf, pei-yuen ng, nor aini jamil, kok-yong chin.  (2019).  prevalence and predictors of osteoporosis among the chinese population in klang valley, malaysia.  - applied sciences.  1-11. 

naren kumar surendra , mohd rizal abdul manaf, lai seong hooi, sunita bavanandan, fariz safhan mohamad nor, shahnaz shah firdaus khan, loke meng ong and abdul halim abdul gafor.  (2019).  health related quality of life of dialysis patients in malaysia: haemodialysis versus continuous ambulatory peritoneal dialysis.  - bmc nephrology.  1-10. 

nur adibah mat saruan, hanizah mohd yusoff, sharifa ezat wan puteh, mohd fadhli mohd fauzi & mohd rizal abd manaf.  (2019).  organisational intervention on absenteeism among workers: a systematic review.  - jurnal pengurusan.  155-171. 

chin yi chan, shaanthana subramaniam, kok-yong chin, soelaiman ima-nirwana, norliza muhammad, ahmad fairus, abdul manaf mohd rizal, pei yuen ng, jamil nor aini, noorazah abd aziz and norazlina mohamed.  (2019).  knowledge, beliefs, dietary, and lifestyle practices related to bone health among middle-aged and elderly chinese in klang valley, malaysia.  - international journal of environmental research and public health.  1-21. 

nor hasyimah haron, ezanee azlina mohamad hanif, mohd rizal abdul manaf, jasmi ali yaakub, roslan harun, ramelah mohamed, isa mohamed rose.  (2019).  microsatellite instability and altered expression of mlh1 and msh2 in gastric cancer.  - asian pacific journal of cancer prevention.  509-517. 

hirman ismail, mohd rizal abdul manaf, abdul halim abdul gafor, zaki morad mohamad zaher, adriana irawati nur ibrahim.  (2019).  economic burden of esrd to the malaysian health care system.  - kidney international reports.  1261-1270. 

dayang anita abdul aziz, marjmin osman, felicia lim, rufina teo, zarina abdul latiff, rizal abdul manaf.  (2018).  external squeeze test during pediatric laparoscopic hernia repair: a novel on-table assessment to ensure complete closure of patent processus vaginalis.  - open access surgery.  1-3. 

norfazillah ab manan, mohd rizal abdul manaf, rozita hod.  (2018).  the malaysia haze and its health economy impact: a literature review.  - malaysian journal of public health medicine.  . 

nurul iftida basri, zaleha abdullah mahdy, shuhaila ahmad, abdul kadir abdul karim, lim pei shan, mohd rizal abdul manaf, nor azlin mohd ismail..  (2018).  the world health organization (who) versus the international association of diabetes and pregnancy study group (iadpsg) diagnostic criteria of gestational diabetes mellitus (gdm) and their associated.  - hormone molecular biology and clinical investigation.  . 

naren kumar surendra, mohd rizal abdul manaf, hooi lai seong, sunita bavanandan, fariz safhan mohamad nor, shahnaz shah firdaus khan, ong loke meng, abdul halim abdul gafor.  (2018).  the cost of dialysis in malaysia: haemodialysis and continuous ambulatory peritoneal dialysis.  - malaysian journal of public health medicine.  . 

mohd shaiful azlan, mohd rizal abdul manaf, noor safiza mohamad nor, rashidah ambak.  (2017).  effects of lifestyle intervention towards obesity and blood pressure among housewives in klang valley: a quasi-experimental study.  - malaysian journal of medical sciences.  83-91. 

muhammad haikal bin ghazali, shamsul azhar bin shah and mohd rizal bin abd manaf.  (2017).  what it takes to set up travel health services: a review from countries with established service.  - malaysian journal of public health medicine.  . 

feisul idzwan mustapha, soraya azmi, mohd rizal abdul manaf, zanariah hussein, nik jasmin nik mahir, fatanah ismail, azimatun noor aizuddin, adrian goh..  (2017).  what are the direct medical costs of managing type 2 diabetes mellitus in malaysia?.  - medical journal of malaysia.  271-277. 

mohd rizal abdul manaf, naren kumar surendra, abdul halim abdul gafor, lai seong hooi & sunita bavanandan.  (2017).  dialysis provision and implications of health economics on peritoneal dialysis utilization: a review from a malaysian perspective.  - international journal of nephrology.  1-7. 

adawiyah j, moonyza aak, hatta s, mohd rizal am, felix bby, nik ruzyanei nj, marhani m, srijit d, ng cg.  (2017).  the risk and associated factors of female sexual dysfunction (fsd) in women with psoriasis.  - international medical journal of malaysia.  107-113. 

m rizal abdul manaf, madihah mustafa, mohd rizam abdul rahman, khairul hazdi yusof, noor azah abd aziz.  (2016).  factors influencing the prevalence of mental health problems among malay elderly residing in a rural community: a cross-sectional study.  - plos one.  1-12. 

mohd rizal abdul manaf, ahmad m qureshi, masoud lotfizadeh, kurubaran ganasegeran, hematram yadav, sami abdoradman al-dubai.  (2016).  factors associated with anxiety and depression among outpatients in malaysia : a cross-sectional study.  - malaysian journal of public health medicine.  181-187. 

vida samiei, sharifa ezat wan puteh, mohd rizal abdul manaf, khalib abdul latip, aniza ismail.  (2016).  are malaysian diabetic patients ready to use the new generation of health care service delivery? a telehealth interest assessment.  - the malaysian journal of medical sciences.  44-52. 

sami ar al-dubai, jane sempeho, hematram yadav, ramesh sahathevan, zhe k law, mohd ra manaf.  (2016).  pre-hospital delays in ischemic stroke patients in a malaysian tertiary hospital.  - international journal of stroke.  1-2. 

tuti ningseh mohd dom, shahida mohd said, mohd rizal abdul manaf, khairiyah abdul muttalib, syed mohamed aljunid.  (2016).  a detailed framework of methods used to calculate costs of periodontal treatment in malaysian public dental clinics.  - malaysian journal of public health medicine.  249-260. 

zobaida edib, verasingam kumarasamy, norlia binti abdullah, am rizal and sami abdo radman al-dubai.  (2016).  most prevalent unmet supportive care needs and quality of life of breast cancer patients in a tertiary hospital in malaysia.  - health and quality of life outcomes.  1-10. 

kurubaran ganasegeran, wilson perianayagam, mohd rizal abdul manaf, saad ahmed ali jadoo and sami abdo radman al-dubai.  (2015).  patient satisfaction in malaysia`s busiest outpatient medical care.  - the scientific world journal.  1-6. 

mohd rizal am, khalib al, ahmad taufik j, nor azmi k, zanariah, hamimah s, norizzati b, sabrizan o.  (2015).  cost-effectiveness of e-mail based empowerment programme (e-beep) among type ii diabetes mellitus in malaysia.  - brunei international medical journal.  s14. 

anisah omar, osman che bakar, nor fatini adam, hakim osman, arina osman, ahmad hatim suleiman, mohd rizal abdul manaf & mohd ikhsan selamat.  (2015).  seropositivity and serointensity of toxoplasma gondii antibodies and dna among patients with schizophrenia.  - korean journal of parasitology.  29-34. 

mohd rizal abdul manaf, khalib abdul latif, ahmad taufik jamil, nor azmi kamaruddin, zanariah, hamimah, norizzati dan sabrizan osman.  (2015).  effectiveness of e-mail based empowerment programme (e-beep) among type ii diabetes patients glycemic control, quality of life, and cost-effectiveness: an intervention study.  - the medical journal of malaysia.  24. 

yoganathan kanaheswari and abdul manaf mohd rizal.  (2015).  renal scarring and chronic kidney disease in children with spina bifida in a multidisciplinary malaysian centre.  - journal of paediatrics and child health.  1175-1181. 

y kanaheswari, r kavitha, amm rizal.  (2014).  urinary tract infection and bacteriuria in children performing clean intermittent catheterization with reused catheters.  - spinal cord.  209-212. 

siti yazmin zs, nor aini u, zarida h, rosdinom r, rizal am.  (2014).  subclinical hypothyroidism among patients with depressive disorders.  - malaysian journal of pathology.  95. 

mohd rizal abdul manaf, mastura mohd tahir, hatta sidi, marhani midin, nik ruzyanei nik jaafar, srijit das & abdul muizz abd malek.  (2014).  pre-marital sex and its predicting factors among malaysian youths.  - comprehensive psychiatry.  55(S1):S82-S88. 

sempeho j, rizal abdul manaf m, sahathevan r, al-dubai s, kang law z.  (2014).  determinants and effects of pre-hospitalisation delays in stroke patients in universiti kebangsaan malaysia medical centre (ukmmc).  - neuroepidemiology.  102-3. 

adibah hanim ismail, rawa bau, hatta sidi, ng chong guan, marhani midin, nik ruzyanei nik jaafar, srijit das, mohd rizal abdul manaf.  (2014).  orgasmic dysfunction among malay diabetic women in malaysia.  - comprehensive psychiatry.  55(S1):S29-S33. 

azimatun noor a, amrizal mn, t weng kang, rafidah ar, y geok hong, adibah a, aniza i, sharifa ezat wp, mohd rizal am.  (2014).  cost analysis of hypertension management in an urban primary medical centre kuala lumpur.  - malaysian journal of public health medicine.  18-23. 

tuti ningseh mohd dom, sharifa ezat wan puteh, amrizal muhd nur, rasidah ayob, mclindent, mohd rizal abdul manaf, khairiyah abdul muttalib, syed mohamed aljunid.  (2014).  cost effectiveness of periodontitis management in public sector specialist periodontal clinics: a societal perspective research in malaysia.  - value in health regional issues.  3(1):117-123. 

hasriza hashim, shahrul azmin, hamizah razlan, nafisah wan yahya, hui jan tan, m rizal abdul manaf, norlinah mohamed ibrahim.  (2014).  eradication of helicobacter pylori infection improves levodopa action, clinical symptoms and quality of life in patients with parkinson`s disease.  - plos one.  1-7. 

kurubaran ganasegeran, j. michael menke, vasudeva murthy challakere ramaswamy, mohd rizal abdul manaf, aled m. alabsi & sami abdo radman al-dubai.  (2014).  level and determinants of knowledge of symptomatic knee osteoarthritis among railway workers in malaysia.  - biomed research international.  Article ID 370273. 

c.c.k. ho, k.s. ngoo, a.h hamzaini, a.m.m. rizal, m.z. zulkifli.  (2014).  urinary bladder characteristics via ultrasound as predictors of acute urinary retention in men with benign prostatic hyperplasia.  - clinica terapeutica.  165(2):. 

kurubaran ganasegeran, pukunan renganathan, mohd rizal abdul manaf, sami abdo radman al-dubai.  (2014).  factors associated with anxiety and depression among type 2 diabetes outpatients in malaysia: a descriptive cross-sectional single-centre study.  - bmj open.  4:e004794. 

tuti ningseh mohd-dom, rasidah ayob, amrizal mohd-nur, mohd rizal abdul-manaf, noorlin ishak, khairiyah abdul-muttalib, syed mohamed aljunid, yuhaniz ahmad-yaziz, hanizah abdul-aziz, noordin kasan.  (2014).  cost analysis of periodontitis management in public sector specialist dental clinics.  - bmc oral health.  2014, 14:56. 

christopher chee kong ho, poh keat seong, zulkifli md zainuddin, mohd rizal abdul manaf, muhilan parameswaran, azad ha razack.  (2013).  retrospective study of predictors of bone metastasis in prostate cancer cases.  - asian pacific journal of cancer prevention.  14(5):2203-2206. 

noor azah aziz, shanaz muhamad, mohd rizak abd manaf, mohd zaini abd hamid.  (2013).  factors influencing h1n1 vaccination among primary health care workers: a cross-sectional study.  - international journal of preventive medicine.  4 (6): 664 - 70. 

tuti ningseh mohd-dom, khairiyah abdul-muttalib, rasidah ayob, yaw siew lan, ahmad sharifuddin mohd-asadi, mohd rizal abdul-manaf, syed mohamed aljunid.  (2013).  periodontal status and provision of periodontal services in malaysia: trends and way forward.  - malaysian journal of public health medicine.  13(2):38-47. 

ariff fadzil, kartini balakrishnan, rosdinom razali, hatta sidi, thinakaran malapan, robert peter japaraj, marhani midin, nik ruzyanei nik jaafar, srijit das & mohd rizal abdul manaf.  (2013).  risk factors for depression and anxiety among pregnant women in hospital tuanku bainun, ipoh, malaysia.  - asia-pacific psychiatry.  5(S1):7-13. 

sharifa ezat wan puteh, natrah mohd. saad, syed mohd aljunid, mohd rizal abdul manaf, saperi sulong, ismail sagap, fuad ismail and muhd azrif muhammad annuar.  (2013).  quality of life in malaysian colorectal cancer patients.  - asia-pacific psychiatry.  5(S1):110-117. 

hamat, r. a., nor amalina, e., malina, o., zamberi, s., alfizah, h., rizal, a. m., aminuddin, a. and ramelah, m..  (2013).  ethnic differences in the prevalence, clinical outcome and cag pathogenicity island (cagpai) virulence gene profiles of helicobacter pylori strains from malaysia.  - pertanika journal of tropical agricultural science.  36(4):289-298. 

saad ahmed ali jadoo, syed mohamed aljunid, seher nur sulku, sharifa ezat wan puteh, zafar ahmed, mohd rizal abdul manaf, sami abdo rahman al-dubai, saperi b sulong, amrizal muhammad nur.  (2013).  people expectations from healthcare providers - a turkish perspective.  - malaysian journal of public health medicine.  13(2):88-97. 

saad ahmed ali jadoo, syed mohamed aljunid, seher nur sulku , sami abdo radman al-dubai, sharifa ezat wan puteh, zafar ahmed, mohd rizal abdul manaf, saperi b sulong, amrizal muhammad nur.  (2013).  health system reform from the people`s point of view: development of reliable valid questionnaire.  - malaysian journal of public health medicine.  13(2):65-76. 

emad adel al-shdaifat, mohd rizal abdul manaf.  (2013).  the economic burden of hemodialysis in jordan.  - indian journal of medical sciences.  67(5 & 6):103-116. 

emad shdaifat, mohd rizal abdul manaf.  (2013).  haemodialysis in jordan: socio-demographic data, clinical analysis and projecting burden.  - middle-east journal of scientific research.  14(5):624-632. 

ms natrah, sharifa wp ezat, ma syed, am mohd rizal, s saperi.  (2012).  quality of life in malaysian colorectal cancer patients: a preliminary result.  - asian pacific journal of cancer prevention.  13(3):957-962. 

hanafiah alfizah, mohamed ramelah, abdul m. rizal, abdullah s. anwar and mohamed r. isa.  (2012).  association of malaysian helicobacter pylori virulence polymorphisms with severity of gastritis and patients` ethnicity.  - helicobacter.  17(5): 340-349. 

natrah mohd, sharifa ezat, syed mohamed aljunid, mohd rizal abdul manaf, saperi sulong, ismail sagap,muhd azrif.  (2012).  cost analysis of colorectal cancer (crc) management in ukm medical centre using clinical pathway.  - bmc public health.  12(Suppl 2):A40. 

sharifa ezat wp, azimatun noor aizuddin, zakiah zainuddin, mohd rizal and manaf, syed aljunid.  (2012).  catastrophic health expenditure and its influencing factors in malaysia.  - bmc health services research.  12(Suppl 1):7. 

m fairuz ali, na aziz, afa aziz, am rizal, s azmin.  (2012).  early functional recovery of ischaemic stroke patients after 3 months of transfer of care from hospital to the community: a prospective observational study.  - cerebrovascular diseases.  34(suppl 1): 46. 

tuti ningseh mohd dom, syed mohamed al junid, mohd rizal abd manaf, khairiyah abd muttalib, ahmad mohd asari, rasidah ayob, yuhaniz yaziz, noorlin ishak, hanizah abdul aziz, noordin kasan.  (2012).  patient-reported outcomes after one year of periodontal treatment at public specialist dental clinics in peninsular malaysia.  - bmc public health.  12(Suppl 2):A4. 

emad a shdaifat, mohd rizal abdul manaf.  (2012).  quality of life among jordanian patients on haemodialysis and their caregivers.  - bmc public health.  12(Suppl 2):A14. 

tuti ningseh mohd dom, shahida mohd said, aznida firzah abdul aziz, mohd rizal abdul manaf, syed mohamed aljunid.  (2012).  periodontal disease as an indicator of chronic non-communicable diseases: evidence from literatures.  - bmc public health.  12(Suppl 2):A26. 

izamin idris, mohd rizal abdul manaf.  (2012).  chest x-ray as an essential part of routine medical examination: is it necessary?.  - medical journal of malaysia.  67(6):606-609. 

ms natrah, sharifa ezat wp, ma syed, mohd am rizal, s saperi, s. ismail, i fuad, muhd ma azrif.  (2012).  economic evaluation of monoclonal antibody in the management of colorectal cancer in malaysia.  - bmc health services research.  12(Suppl 1):7. 

kurubaran ganasegeran, sami ar al-dubai, ahmad m qureshi, al-abed aa al-abed, rizal am, syed m aljunid.  (2012).  social and psychological factors affecting eating habits among university students in a malaysian medical school: a cross sectional study.  - nutrition journal.  11 (1) , art. no. 48. 

sami abdo radman al-dubai, kurubaran ganasegeran, aied m alabsi, mohd rizal abdul manaf, sharea ijaz, saba kassim.  (2012).  exploration of barriers to breast-self examination among urban women in shah alam, malaysia: a cross sectional study.  - asian pacific journal of cancer prevention.  13(4):1627-1632. 

aniza, i., mohd rizal, a.m., ng, y.s., mardhiyyah, m., helmi, i., khair syamimi, b., muhammad tahar, a.r..  (2011).  caregivers` satisfaction of healthcare delivery at paediatric clinics of universiti kebangsaan malaysia medical centre in 2009.  - medical journal of malaysia.  66(2):84-88. 

i izamin, i aniza, am rizal, sm aljunid.  (2009).  comparing extracorporeal shock wave lithotripsy and ureteroscopy for treatment of proximal ureteric calculi: a cost effectiveness study.  - medical journal of malaysia.  64(1):12-21. 

ramelah mohamed, alfizah hanafiah, isa m rose, mohd rizal a manaf, shiekh anwar abdullah, ismail sagap, a van belkum, jasmi a yaacob.  (2009).  helicobacter pylori caga gene variants in malaysians of different ethnicity.  - european journal of clinical microbiology and infectious diseases.  28(7):865-869. 

joseph henry leonard, chan poh choo, mohd. rizal abdul manaf, zaleha md isa, nor azlin mohd nordin, srijit das.  (2009).  development and evaluation of `neck pain and functional limitation scale`: a validation study in the asian context.  - indian journal of medical sciences.  63(10):445-454. 

hamidah a, rizal a m, nordiah a j, jamal r.  (2008).  piperacillin-tazobactam plus amikacin as an empirical therapy of febrile neutropenia in paediatric cancer patients.  - singapore medical journal.  49(1):26-30. 

tan hj, suganthi c, dhachayani s, rizal am, raymond aa.  (2007).  the electroencephalogram changes in migraineurs.  - medical journal of malaysia.  61(1):56-58. 

lee m.y., hussain r.b.t., mohamad m.b.t., rizal a.m..  (2007).  effect of diabetes on visual acuity following phacoemulsification cataract surgery.  - asian journal of ophthalmology.  9(6):245-50. 

tan hj, suganthi c, dhachayani s, mohd rizal am, raymond aa.  (2007).  the coexistence of anxiety and depressive personality traits in migraine.  - singapore medical journal.  48(4):307-310. 

rohana abdul ghani, soehardy zainudin, norella ct kong, ahmad fauzi abdul rahman, syed rozaidi wafa syed hussain wafa, marlyn mohamad, mohd rizal abdul manaf, and rahimah ismail.  (2006).  serum il-6 and il-1-ra with sequential organ failure assessment scores in septic patients receiving high-volume haemofiltration and continuous venovenous haemofiltration.  - nephrology.  11(5):386-393. 

tan hj., rizal am., rosmadi my. & goh kl.  (2006).  role of helicobacter pylori virulence factor and genotypes in non-ulcer dyspepsia.  - journal of gastroenterology & hepatology.  21(1):110-115. 

tan smk., shafiee z., wu ll., rizal am. & rey jm.  (2005).  factors associated with control of type i diabetes in malaysian adolescents and young adults.  - international journal of psychiatry in medicine.  35(2):123-136. 

tan hj, rizal am, rosmadi my, goh kl..  (2005).  distribution of helicobacter pylori caga, cage and vaca in different ethnic groups in kuala lumpur, malaysia.  - journal of gastroenterology and hepatology.  20(4) : 589-594. 

m ramelah, h alfizah, a aminuddin, mr isa, n sukumar, am rizal, mz mazlam & ay jasmi.  (2004).  distinct genetic diversity of helicobacter pylori caga gene.  - medical journal of malaysia.  59(Supp C):36. 

bs gendeh, sh mujahid, s murad, m rizal.  (2004).  atopic sensitization of children with rhinitis in malaysia.  - medical journal malaysia.  59(4):522-529. 

am rizal, s m aljunid, m normalina, a faridah hanom, k l chuah, y suzainah, m zainal, a b azman.  (2003).  cost analysis of cataract surgery with intraocular lens implantation: a single blind randomised clinical trial comparing extracapsular cataract extraction and phacoemulsification.  - medical journal of malaysia.  58(3):380-386.