Preventing recurrent upper gastrointestinal bleeding in patients with Helicobacter pylori infection who are taking low-dose aspirin or naproxenCHAN, Francis K. L; CHUNG, S. C; CHAN, Henry L. Y et al.The New England journal of medicine. 2001, Vol 344, Num 13, pp 967-973, issn 0028-4793Article

Repeat-Screening Colonoscopy 5 Years After Normal Baseline-Screening Colonoscopy in Average-Risk Chinese: A Prospective StudyLEUNG, Wai K; LAU, James Yw; NG, Simon S. M et al.The American journal of gastroenterology. 2009, Vol 104, Num 8, pp 2028-2034, issn 0002-9270, 7 p.Article

Combination of a cyclo-oxygenase-2 inhibitor and a proton-pump inhibitor for prevention of recurrent ulcer bleeding in patients at very high risk : a double-blind, randomised trial. CommentarySCHEIMAN, James M; FENDRICK, A. Mark; LEE, Vivian Wing Yan et al.Lancet (British edition). 2007, Vol 369, Num 9573, issn 0140-6736, 1580-1581,1621-1626 [8 p.]Article