wan izzah wan jaffar, guo hou loo, fazarina mohammed, deborah chia hsin chew, guhan muthkumaran and nik ritza kosai.  (2025).  case report: rare case of signet ring gastric adenocarcinoma with rectal metastasis.  - frontiers in oncology.  1 - 6. 

deborah chia hsin chew, xin-hui khoo, tiong see lee, kok-yong chin, raja affendi raja ali, khairul najmi muhammad nawawi, nik razima wan ibrahim, ida hilmi.  (2024).  a systematic review on the increasing incidence of inflammatory bowel disease in southeast asia: looking beyond the urbanization phenomenon.  - inflammatory bowel diseases.  1566 - 1578. 

k.n. muhammad nawawi, a.a. andi radi, d.c. chia hsin, a. mohamed nawi, k. wei hao.  (2024).  the use of antifoaming agents just before the oesophagogastroduodenoscopy (ogds), significantly improve the visibility of gastric mucosa: a randomized, double-blind, placebo-controlled trial.  - digestive endoscopy.  162 - 163. 

nur izreena ismail, khairul najmi muhammad nawawi, deborah chew chia hsin, kok wei hao, nik ritza kosai nik mahmood, gary lee chong chearn, zhiqin wong, azmi mohd tamil, hazel joseph, raja affendi raja ali.  (2023).  probiotic containing lactobacillus reuteri dsm 17648 as an adjunct treatment for helicobacter pylori infection: a randomized, double- blind, placebo- controlled trial.  - helicobacter.  1-11. 

aswini kumareswaran, sophia ogechi ekeuku, norazlina mohamed, norliza muhammad, alfizah hanafiah, kok-lun pang, sok kuan wong, deborah chia hsin chew, kok-yong chin.  (2023).  the effects of tocotrienol on gut microbiota: a scoping review.  - life.  1-19. 

nurwahyuna rosli, nur alyssa rozaimi, muhammad harith abdul shukor, jevetha m. rajendran, loo shi ting, deborah chew chia hsin, fazarina mohammed.  (2021).  the incidence and histological diagnosis of barrett oesophagus at hospital canselor tuanku muhriz.  - the malaysian journal of pathology.  142. 

sumitro kosasih, khairul najmi muhammad nawawi, zhiqin wong, deborah chew chia hsin, andrea yu-lin ban, raja affendi raja ali.  (2019).  upper gastrointestinal bleed due to duodenal metastases of lung adenocarcinoma: report of two cases and review of literature.  - case reports in medicine.  1-4. 

khairul najmi muhammad nawawi, deborah chia hsin chew, zhiqin wong, chai soon ngiu, raja affendi raja ali.  (2018).  the prevalence of non-alcoholic fatty liver disease in patients with chronic hepatitis b and its associated characteristics.  - journal of gastroenterology and hepatology.  141. 

deborah chew, wong zhiqin, norhayati ibrahim,raja affendi raja ali.  (2018).  optimizing the multidimensional aspects of the patient-physician relationship in the management of inflammatory bowel disease.  - intestinal research.  509-521. 

wan izzah wan jaffar, guo hou loo, fazarina mohammed, deborah chia hsin chew, guhan muthkumaran and nik ritza kosai.  (2025).  case report: rare case of signet ring gastric adenocarcinoma with rectal metastasis.  - frontiers in oncology.  1 - 6. 

deborah chia hsin chew, xin-hui khoo, tiong see lee, kok-yong chin, raja affendi raja ali, khairul najmi muhammad nawawi, nik razima wan ibrahim, ida hilmi.  (2024).  a systematic review on the increasing incidence of inflammatory bowel disease in southeast asia: looking beyond the urbanization phenomenon.  - inflammatory bowel diseases.  1566 - 1578. 

k.n. muhammad nawawi, a.a. andi radi, d.c. chia hsin, a. mohamed nawi, k. wei hao.  (2024).  the use of antifoaming agents just before the oesophagogastroduodenoscopy (ogds), significantly improve the visibility of gastric mucosa: a randomized, double-blind, placebo-controlled trial.  - digestive endoscopy.  162 - 163. 

nur izreena ismail, khairul najmi muhammad nawawi, deborah chew chia hsin, kok wei hao, nik ritza kosai nik mahmood, gary lee chong chearn, zhiqin wong, azmi mohd tamil, hazel joseph, raja affendi raja ali.  (2023).  probiotic containing lactobacillus reuteri dsm 17648 as an adjunct treatment for helicobacter pylori infection: a randomized, double- blind, placebo- controlled trial.  - helicobacter.  1-11. 

aswini kumareswaran, sophia ogechi ekeuku, norazlina mohamed, norliza muhammad, alfizah hanafiah, kok-lun pang, sok kuan wong, deborah chia hsin chew, kok-yong chin.  (2023).  the effects of tocotrienol on gut microbiota: a scoping review.  - life.  1-19. 

deborah chew chia hsin dan shanthi krishnasamy.  (2025).  intermittent fasting bantu kursus sambil baiki metabolisme usus-pakar.  - lifestyle bernama.  . 

chew chia hsin deborah, shanthi a/p krishnasamy, syaratul dalina binti yusoff, khairul najmi bin muhammad nawawi.  (2024).  makanan barat sebabkan radang usus?.  - utusan malaysia.  . 

nik ritza kosai nik mahmood, kok wei hao, lee chong chearn, azmi baharudin, deborah chew chia hsin, nor azmin aziz, norlela sukor.  (2025).  hctm pioneers endoscopic sleeve gastroplasty in fight against obesity.  - malaysiakini.  . 

aswini kumareswaran, sophia ogechi ekeuku, norazlina mohamed, norliza muhammad, alfizah hanafiah, kok-lun pang, sok kuan wong, deborah chia hsin chew, kok-yong chin.  (2025).  the combination effects of orchidectomy and antibiotics on bone in male rats.  - the 5th international conference on advances in medical science.  . 

deborah chew chia hsin dan shanthi krishnasamy.  (2025).  intermittent fasting bantu kursus sambil baiki metabolisme usus-pakar.  - lifestyle bernama.  . 

shanthi krishnasamy, mok jia wai, abu kassim nur fadzilah, roslan wan nur faiqah, you yee xing, periyasamy petrik@ramesh, chew deborah chia hsin, siah kewin tein ho.  (2024).  food avoidance, covid-19 infection and post-infectious functional gastrointestinal disorders: is there a link?.  - asia pacific digestive week.  . 

chew chia hsin deborah, shanthi a/p krishnasamy, syaratul dalina binti yusoff, khairul najmi bin muhammad nawawi.  (2024).  makanan barat sebabkan radang usus?.  - utusan malaysia.  .