RT Journal Article SR Electronic T1 A case of idiopathic portal vein thrombosis? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 111 OP 111 DO 10.1136/gut.2008.165514 VO 59 IS 01 A1 R D Johnston A1 C Chang A1 R K Singh A1 A Austin A2 Emad El-Omar YR 2010 UL http://gut.bmj.com/content/59/01/111.abstract AB