RT Journal Article SR Electronic T1 Colonic embolisation: useful but caution required JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 4 OP 5 DO 10.1136/gut.43.1.4 VO 43 IS 1 A1 A P HEMINGWAY A1 D J ALLISON YR 1998 UL http://gut.bmj.com/content/43/1/4.abstract AB