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W. Leung · SciRah

Researcher profile · Semantic Scholar

W. Leung

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W. Leung — researcher profile on SciRah

h-index: 68
Works: 399
Citations: 18K

Most-cited papers

Gastrointestinal Manifestations of SARS-CoV-2 Infection and Virus Load in Fecal Samples From a Hong Kong Cohort: Systematic Review and Meta-analysis
Ka-Shing Cheung, I. Hung, P. Chan, Kwok-Cheung Lung +17 more
2020Gastroenterology1,515 citations Open access
Semantic Scholar
Long-term proton pump inhibitors and risk of gastric cancer development after treatment for Helicobacter pylori: a population-based study
K. Cheung, E. Chan, A. Wong, Lijia Chen +2 more
2017Gut449 citations Open access
Semantic Scholar
Short- and potential long-term adverse health outcomes of COVID-19: a rapid review
T. Leung, Ayl Chan, E. Chan, V. Chan +21 more
2020Emerging Microbes and Infections206 citations Open access
Semantic Scholar
Gastrointestinal bleeding in patients on novel oral anticoagulants: Risk, prevention and management
K. Cheung, W. Leung
2017World Journal of Gastroenterology182 citations Open access
Semantic Scholar
Narrow-band Imaging for Detection of Neoplasia at Colonoscopy: a Meta-analysis of Data From Individual Patients in Randomized Controlled Trials.
Nathan S. S. Atkinson, S. Ket, P. Bassett, D. Aponte +22 more
2019Gastroenterology153 citations Open access
Semantic Scholar
Effects of Helicobacter pylori Treatment on Incidence of Gastric Cancer in Older Individuals.
W. Leung, I. Wong, Ka-Shing Cheung, Kar-Fu Yeung +5 more
2018Gastroenterology144 citations Open access
Semantic Scholar
Long-term use of proton-pump inhibitors and risk of gastric cancer: a review of the current evidence
Ka-Shing Cheung, W. Leung
2019Therapeutic Advances in Gastroenterology124 citations Open access
Semantic Scholar
ACCURACY OF ARTIFICIAL INTELLIGENCE ON HISTOLOGY PREDICTION AND DETECTION OF COLORECTAL POLYPS: A SYSTEMATIC REVIEW AND META-ANALYSIS.
T. K. Lui, Chuan-Guo Guo, W. Leung
2020Gastrointestinal Endoscopy112 citations
Semantic Scholar
Aspirin Use and Risk of Colorectal Cancer Among Older Adults.
Chuan-Guo Guo, Wenjie Ma, David A. Drew, Yin Cao +9 more
2021JAMA Oncology91 citations Open access
Semantic Scholar
Accuracy of artificial intelligence-assisted detection of upper GI lesions: a systematic review and meta-analysis.
T. K. Lui, V. Tsui, W. Leung
2020Gastrointestinal Endoscopy79 citations
Semantic Scholar
Impacts of the Coronavirus 2019 Pandemic on Gastrointestinal Endoscopy Volume and Diagnosis of Gastric and Colorectal Cancers: A Population-Based Study
T. K. Lui, Kathy S. M. Leung, Chuan-Guo Guo, V. Tsui +2 more
2020Gastroenterology75 citations Open access
Semantic Scholar
Risk of gastric cancer development after eradication of Helicobacter pylori
K. Cheung, W. Leung
2018World Journal of Gastrointestinal Oncology74 citations Open access
Semantic Scholar
Metformin Use and Gastric Cancer Risk in Diabetic Patients After Helicobacter pylori Eradication.
Ka-Shing Cheung, E. Chan, A. Wong, Lijia Chen +3 more
2018Journal of the National Cancer Institute73 citations Open access
Semantic Scholar
Use of Antibiotics during Immune Checkpoint Inhibitor Treatment Is Associated with Lower Survival in Hepatocellular Carcinoma
Ka-Shing Cheung, L. Lam, W. Seto, W. Leung
2021Liver Cancer68 citations Open access
Semantic Scholar
Endoscopic prediction of deeply submucosal invasive carcinoma with use of artificial intelligence
T. Lui, K. Wong, L. L. Mak, Michael K.L. Ko +2 more
2019Endoscopy International Open58 citations Open access
Semantic Scholar
Aspirin and Risk of Gastric Cancer After Helicobacter pylori Eradication: A Territory-Wide Study
Ka-Shing Cheung, E. Chan, A. Wong, Lijia Chen +3 more
2018Journal of the National Cancer Institute57 citations
Semantic Scholar
Diabetes Increases Risk of Gastric Cancer After Helicobacter pylori Eradication: A Territory-Wide Study With Propensity Score Analysis
Ka-Shing Cheung, E. Chan, Lijia Chen, W. Seto +2 more
2019Diabetes Care55 citations
Semantic Scholar
Potential Strategies in the Prevention of Nonsteroidal Anti-inflammatory Drugs-Associated Adverse Effects in the Lower Gastrointestinal Tract
Chuan-Guo Guo, W. Leung
2019Gut and Liver52 citations Open access
Semantic Scholar
SARS-CoV-2 Induces a More Robust Innate Immune Response and Replicates Less Efficiently Than SARS-CoV in the Human Intestines: An Ex Vivo Study With Implications on Pathogenesis of COVID-19
H. Chu, Jasper Fuk-Woo Chan, Yi-Xin Wang, Terrence Tsz-Tai Yuen +21 more
2020Cellular and Molecular Gastroenterology and Hepatology51 citations Open access
Semantic Scholar
Statins reduce the progression of non-advanced adenomas to colorectal cancer: a postcolonoscopy study in 187 897 patients
K. Cheung, Lijia Chen, E. Chan, W. Seto +2 more
2019Gut49 citations
Semantic Scholar
Application of Big Data analysis in gastrointestinal research
K. Cheung, W. Leung, W. Seto
2019World Journal of Gastroenterology49 citations Open access
Semantic Scholar
Epidemiology and Natural History of Elderly-onset inflammatory bowel disease: Results from a territory-wide Hong Kong IBD registry.
J. Mak, C. L. Ho, Kylie Wong, Tsz-Yan Cheng +14 more
2020Journal of Crohn's & Colitis48 citations
Semantic Scholar
Applications of machine learning models in the prediction of gastric cancer risk in patients after Helicobacter pylori eradication
W. Leung, Ka-Shing Cheung, Bo-Fei Li, S. Law +1 more
2021Alimentary Pharmacology and Therapeutics42 citations
Semantic Scholar
Roles of Methylated DNA Biomarkers in Patients with Colorectal Cancer
Zhi-Yao Ma, Marissa Williams, Yuen-Yee Cheng, W. Leung
2019Disease Markers41 citations Open access
Semantic Scholar
Association Between Famotidine Use and COVID-19 Severity in Hong Kong: A Territory-wide Study
Ka-Shing Cheung, I. Hung, W. Leung
2020Gastroenterology38 citations Open access
Semantic Scholar
ACE (Angiotensin-Converting Enzyme) Inhibitors/Angiotensin Receptor Blockers Are Associated With Lower Colorectal Cancer Risk
Ka-Shing Cheung, E. Chan, W. Seto, I. Wong +1 more
2020HYPERTENSION37 citations Open access
Semantic Scholar
Linked-color imaging versus narrow-band imaging for colorectal polyp detection: a prospective randomized tandem colonoscopy study.
W. Leung, Chuan-Guo Guo, Michael K.L. Ko, E. To +12 more
2019Gastrointestinal Endoscopy37 citations
Semantic Scholar
Significant Medical and Surgical Morbidity in Perianal Crohn’s Disease: Results from a Territory-Wide Study
W. Mak, Oi-Sze Mak, Choon Kin Lee, Whitney Tang +15 more
2018Journal of Crohn's & Colitis37 citations
Semantic Scholar
Statins Were Associated with a Reduced Gastric Cancer Risk in Patients with Eradicated Helicobacter Pylori Infection: A Territory-Wide Propensity Score Matched Study
Ka-Shing Cheung, E. Chan, A. Wong, Lijia Chen +3 more
2019Cancer Epidemiology, Biomarkers and Prevention36 citations Open access
Semantic Scholar
Methylated Septin 9 and Carcinoembryonic Antigen for Serological Diagnosis and Monitoring of Patients with Colorectal Cancer After Surgery
Zhi-Yao Ma, W. Law, E. Ng, C. S. Chan +5 more
2019Scientific Reports36 citations Open access
Semantic Scholar
Right-Sided Location Not Associated with Missed Colorectal Adenomas in an Individual-Level Reanalysis of Tandem Colonoscopy Studies.
K. Zimmermann-Fraedrich, S. Sehner, D. Rex, T. Kaltenbach +11 more
2019Gastroenterology36 citations Open access
Semantic Scholar
Incidences, temporal trends and risks of hospitalisation for gastrointestinal bleeding in new or chronic low-dose aspirin users after treatment for Helicobacter pylori: a territory-wide cohort study
Chuan-Guo Guo, Ka-Shing Cheung, Fei-Fei Zhang, E. Chan +3 more
2019Gut33 citations Open access
Semantic Scholar
Combined Use of Common Fecal and Blood Markers for Detection of Endoscopically Active Inflammatory Bowel Disease
L. Mak, T. Tong, K. Cheung, Lijia Chen +3 more
2020Clinical and Translational Gastroenterology32 citations Open access
Semantic Scholar
Delay in Retreatment of Helicobacter pylori Infection Increases Risk of Upper Gastrointestinal Bleeding.
Chuan-Guo Guo, K. Cheung, Fei-Fei Zhang, E. Chan +3 more
2020Clinical Gastroenterology and Hepatology32 citations Open access
Semantic Scholar
Magnetic resonance cholangiogram patterns and clinical profiles of ketamine-related cholangiopathy in drug users.
W. Seto, S. Mak, K. Chiu, V. Vardhanabhuti +8 more
2018Journal of Hepatology31 citations
Semantic Scholar
Systematic review with meta‐analysis: the risk of gastrointestinal bleeding in patients taking third‐generation P2Y12 inhibitors compared with clopidogrel
Chuan-Guo Guo, Lijia Chen, E. Chan, K. Cheung +3 more
2018Alimentary Pharmacology and Therapeutics30 citations
Semantic Scholar
Is artificial intelligence the final answer to missed polyps in colonoscopy?
T. Lui, W. Leung
2020World Journal of Gastroenterology27 citations Open access
Semantic Scholar
Prior gastroscopy and mortality in patients with gastric cancer: a matched retrospective cohort study.
W. Leung, H. Ho, Jaw-Town Lin, Ming-Shiang Wu +1 more
2018Gastrointestinal Endoscopy27 citations
Semantic Scholar
Asian Pacific Association of Gastroenterology (APAGE) Inflammatory Bowel Disease (IBD) Working Party guidelines on IBD management during the COVID‐19 pandemic
K. Ling, I. Hilmi, R. A. Raja Ali, Rupert Leong +17 more
2020JGH Open24 citations Open access
Semantic Scholar
Nonsteroidal anti‐inflammatory drugs but not aspirin are associated with a lower risk of post‐colonoscopy colorectal cancer
Ka-Shing Cheung, Lijia Chen, E. Chan, W. Seto +2 more
2020Alimentary Pharmacology and Therapeutics23 citations Open access
Semantic Scholar
Risks of hospitalization for upper gastrointestinal bleeding in users of selective serotonin reuptake inhibitors after Helicobacter pylori eradication therapy: a propensity score matching analysis
Chuan-Guo Guo, Ka-Shing Cheung, Fei-Fei Zhang, E. Chan +3 more
2019Alimentary Pharmacology and Therapeutics23 citations Open access
Semantic Scholar
High prevalence and risk factors of multiple antibiotic resistance in patients who fail first-line Helicobacter pylori therapy in southern China: a municipality-wide, multicentre, prospective cohort study.
Tao Lyu, Ka-Shing Cheung, Li Ni, Jiaqi Guo +9 more
2020Journal of Antimicrobial Chemotherapy21 citations
Semantic Scholar
Cancer risk and chemoprevention in Chinese inflammatory bowel disease patients: a population-based cohort study
J. Mak, J. So, Whitney Tang, T. Yip +14 more
2020Scandinavian Journal of Gastroenterology20 citations Open access
Semantic Scholar
Application of droplet digital polymerase chain reaction of plasma methylated septin 9 on detection and early monitoring of colorectal cancer
Zhi-Yao Ma, C. S. Chan, K.-S. Lau, L. Ng +2 more
2021Scientific Reports19 citations Open access
Semantic Scholar
Divergent trends of hospitalizations for upper and lower gastrointestinal bleeding based on population prescriptions of aspirin, proton pump inhibitors and Helicobacter pylori eradication therapy
Chuan-Guo Guo, Fei-Fei Zhang, Joseph T. Wu, K. Cheung +3 more
2021United European Gastroenterology journal18 citations Open access
Semantic Scholar
Feedback from artificial intelligence improved the learning of junior endoscopists on histology prediction of gastric lesions
T. Lui, K. Wong, L. L. Mak, E. To +6 more
2020Endoscopy International Open16 citations Open access
Semantic Scholar
Modification of gastric cancer risk associated with proton pump inhibitors by aspirin after Helicobacter pylori eradication
Ka-Shing Cheung, W. Leung
2018OncoTarget15 citations Open access
Semantic Scholar
P788 Significant medical and surgical morbidity in perianal Crohn’s disease: Results from a population-based study
W. Mak, Oi-Sze Mak, Choon Kin Lee, Whitney Tang +13 more
201815 citations
Semantic Scholar
Risk of malignancies in patients with inflammatory bowel disease who used thiopurines as compared with other indications: a territory-wide study
Kelvin Y. C. Zheng, Chuan-Guo Guo, I. Wong, Lijia Chen +3 more
2020Therapeutic Advances in Gastroenterology11 citations Open access
Semantic Scholar
Chemopreventive Effect of Metformin on Gastric Cancer Development
Ka-Shing Cheung, Kit-Lam Chung, W. Leung
2021Gut and Liver9 citations Open access
Semantic Scholar

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Ka-Shing Cheung — researcher profile on SciRah
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Michael K. K. Li — researcher profile on SciRah