RT Journal Article SR Electronic T1 Peptic ulceration and gastrointestinal bleeding in pancreatitis. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 253 OP 259 DO 10.1136/gut.8.3.253 VO 8 IS 3 A1 I N Marks A1 S Bank A1 J H Louw A1 J Farman YR 1967 UL http://gut.bmj.com/content/8/3/253.abstract AB