RT Journal Article SR Electronic T1 Preservation of faecal continence during rises in ultra-abdominal pressure. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 553 OP 554 DO 10.1136/gut.29.4.553-a VO 29 IS 4 A1 Bartolo, D C YR 1988 UL http://gut.bmj.com/content/29/4/553.2.abstract AB