nor adzimah johdi , noraidatulakma abdullah , ying-xian goh, joanna ooi su min, nor azila muhammad azami , muhammad irfan abdul jalal , azmawati mohammed nawi, norfazilah ahmad , mohd rohaizat hassan, anita sulong, najma kori, petrick periyasamy, faisal hamid, norrafidah md sapuan, sheela bai pannir selvam, noriah hajib, norlaila mustafa, noor zetti zainol rashid, sharifah azura salleh, hamidah alias, mohd shahrir mohamed said, siti norlia othman, poh bee koon, faizal amri hamzah, shamsuriani md jamal, razman jarmin, hanita othman, khamsiah nawawi, hanafiah harunarashid, mohammad nizam mokhtar, wan rahiza wan mat, azwa shawani kamalul arifin, aisyatul najihah khuzaimi, nazihah abd jalal, norliza ismail, nurul ain mhd yusuf, andri dauni, wan ahmad faisal wan sallam, ahmad syafiq shafie, mohd arman kamaruddin, rahman jamal.  (2026).  risk factors for covid-19 symptom severity across clinical categories among hospitalised patients in kuala lumpur, malaysia: a prospective cohort study.  - bmj open.  1 - 13. 

muhammad irfan abdul jalal, kai shen ooi, kai cheong foo, azrul azlan hamzah, chang fu dee, poh choon ooi, muhammad ramdzan buyong, arifah syahirah abdul rahman, teck yew low, xin yun chua, doris sie chong lau, fook choe cheah.  (2026).  randomized double-blind crossover trial of a transdermal maltose dissolvable microneedle patch for topical anesthesia before intravenous cannulation for thalassemia children. .  - scientific reports.  1 - 13. 

muhammad-redha abdullah-zawawi, shing cheng tan, muhammad irfan abdul jalal, nur alyaa afifah md shahri, mira farzana mohamad mokhtar, rahman jamal.  (2026).  an integrative bioinformatics study identifies clca1, zg16, aqp8, fcgbp, and slc17a4 as potential biomarkers mediating colorectal cancer progression via cell cycle modulation.  - heliyon.  1 - 13. 

izreen izzati razalli, muhammad-redha abdullah-zawawi, amin-asyraf tamizi, sarahani harun, rabiatul-adawiah zainal-abidin, muhammad irfan abdul jalal, mohammad asad ullah, zamri zainal.  (2025).  accelerating crop improvement via integration of transcriptome-based network biology and genome editing.  - planta.  1 - 31. 

nabil mohammad azmi, prem k gopal, muhammad irfan abdul jalal, mazian ismail, farizal fadzil.  (2025).  improvement in adenoma detection rate with distal attachment device endo-wing™-assisted colonoscopy: a randomized control trial.  - diagnostics.  1 - 15. 

muhammad irfan abdul jalal , mun yin yen, lam chenshen, mae-lynn catherine bastion, chua xin yun, sharipah salwa abdul razak, sharmilah kuppusami, arifah syahirah abdul rahman, mohd eusoff azizol nashriby, nurul ashikin a. rahim, poh choon ooi, muhamad ramdzan buyong, mohd ambri mohamed, chang fu dee, azlan azrul hamzah, fook-choe cheah.  (2025).  the efficacy and safety of lignocaine-embedded dissolvable microneedle versus emla for topical analgesia in adults undergoing venepuncture: a single-centre, parallel-group, double-blind randomised clinical trial protocol in a tertiary care setting.  - plos one.  1 - 21. 

muhammad irfan abdul jalal, muhammad-redha abdullah-zawawi, nurfadhlina musa, basyirah ghazali, zalina zahari, nasir mohamad.  (2025).  a synonymous kcnh2 polymorphism and methadone trough level influence qtc prolongation in kelantanese malay recipients of methadone maintenance therapy (mmt) in malaysia.  - plos one.  1 - 22. 

nabil mohammad azmi, muhammad irfan abdul jalal, siti hamizah mohd ashar, muhammad irfan mohd nazri, young jie, nagulan ganeson, joane k. augustine, yew sheng qian.  (2025).  a prospective single-masked, non-inferiority, parallel-group randomized controlled trial of the efficacy of a chatgpt-based ai chatbot to improve boston bowel preparation scores for colonoscopy preparation: a trial protocol.  - plos one.  1 - 22. 

steven hj hageman, zijuan huang, hokyou lee, stephen kaptoge, jannick an dorresteijn, lisa pennells, emanuele di angelantonio, frank lj visseren, hyeon chang kim, sofian johar, noraidatulakma abdullah, muhammad irfan abdul jalal, elizabeth lm barr, parinya chamnan, chean lin chong, lucky cuenza, pei gao, ian graham, saima hilal, joris holtrop, rahman jamal, tosha ashish kalhan, hidehiro kaneko, chi-ho lee, charlie gy lim, xiaofei liu, dianna j magliano, nima motamed, maziar moradi-lakeh, sok king ong, ruwanthi perera, kameshwar prasad, jonathan e shaw, janaka de silva, xueling sim, yuta suzuki, kathryn cb tan, xun tang, kavita venkataraman, rajitha wickremasinghe, hideo yasunaga, farhad zamani, emanuele di angelantonio, michael papadakis, adam timmis, victor aboyans, panos vardas, frank lj visseren, john william mcevoy, maryam kavousi, jean ferrieres, radu huculeci, alex junia, rungroj krittayaphong, quang ngoc nguyen, abdul halim raynaldo, alan fong, hyo-soo kim, jack tan, issei komuro, wael almahmeed, khung keong yeo, junya ako, kyung woo park.  (2024).  risk prediction of cardiovascular disease in the asia-pacific region: the score2 asia-pacific model.  - european heart journal.  4979 - 4992. 

kai shen ooi, muhammad irfan abdul jalal, jing yuan wong, minn yin choo, nurul afifah kamruldzaman, chuan way lye, lucy chai see lum.  (2023).  the prevalence and determinants of child hunger and its associations with early childhood nutritional status among urban poverty households during covid-19 pandemic in petaling district, malaysia: an exploratory cross-sectional survey.  - nutrients.  1-22. 

wei keong chieng, muhammad irfan abdul jalal, jashveerdeep singh bedi, ani amelia zainuddin, mohd helmy mokhtar, muhammad azrai abu, kah teik chew and abdul ghani nur azurah.  (2022).  probiotics, a promising therapy to reduce the recurrence of bacterial vaginosis in women? a systematic review and meta-analysis of randomized controlled trials.  - frontiers in nutrition.  1-12. 

jun xin lee, wei keong chieng, muhammad irfan abdul jalal, chai eng tan, sie chong doris lau.  (2022).  role of serum ferritin in predicting outcomes of covid-19 infection among sickle cell disease patients: a systematic review and meta-analysis.  - frontiers in medicine.  1-8. 

muhammad irfan abdul jalal, kai shen ooi, kai cheong foo, azrul azlan hamzah, chee seong goh, chang fu dee, poh choon ooi, muhamad ramdzan buyong, teck yew low, xin yun chua, doris sie chong lau, zarina abdul latiff and fook choe cheah.  (2022).  transdermal maltose-based microneedle patch as adjunct to enhance topical anesthetic before intravenous cannulation of pediatric thalassemic patients receiving blood transfusion: a randomized controlled trial protocol.  - journal of clinical medicine.  1-16. 

crystal c. wang, muhammad irfan abdul jalal, zhi liang song, yik pheng teo, chin aun tan, kai voon heng, michelle siu yee low, azriyanti anuar zaini, lucy chai see lum.  (2022).  a randomized pilot trial of micronutrient supplementation for under-5 children in an urban low-cost flat community in malaysia: a framework for community-based research integration.  - international journal of environmental research and public health.  1-21.