RT Journal Article SR Electronic T1 Imaging of Abdominal and Pelvic Anatomy JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 300 OP 300 DO 10.1136/gut.43.2.300-d VO 43 IS 2 A1 D NOLAN YR 1998 UL http://gut.bmj.com/content/43/2/300.4.abstract AB