RT Journal Article SR Electronic T1 Endoscopic injection therapy. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1150 OP 1150 DO 10.1136/gut.34.8.1150 VO 34 IS 8 A1 C P Choudari A1 K R Palmer YR 1993 UL http://gut.bmj.com/content/34/8/1150.1.abstract AB