RT Journal Article SR Electronic T1 Endoscopic papillectomy. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 561 DO 10.1136/gut.40.4.561-a VO 40 IS 4 A1 A D McCutcheon YR 1997 UL http://gut.bmj.com/content/40/4/561.2.abstract AB