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 Johnston, R D A1 Chang, C A1 Singh, R K A1 Austin, A A2 El-Omar, Emad YR 2010 UL http://gut.bmj.com/content/59/01/111.abstract AB