RT Journal Article SR Electronic T1 Endoscopic therapy of Barrett’s: what more do we need to know? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 779 OP 780 DO 10.1136/gut.2003.036392 VO 53 IS 6 A1 J-L Van Laethem A1 J Devière YR 2004 UL http://gut.bmj.com/content/53/6/779.abstract AB