RT Journal Article SR Electronic T1 Bleeding peptic ulcer JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 315 OP 315 DO 10.1136/gut.52.2.315 VO 52 IS 2 A1 O M P Jolobe A1 A A BenHamida A1 B Basu-Chaudhuri YR 2003 UL http://gut.bmj.com/content/52/2/315.1.abstract AB