RT Journal Article SR Electronic T1 Intestinal permeability JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 693 OP 693 DO 10.1136/gut.29.5.693 VO 29 IS 5 A1 Cobden, I YR 1988 UL http://gut.bmj.com/content/29/5/693.1.abstract AB