RT Journal Article SR Electronic T1 Cerebral venous thrombosis in acute inflammatory bowel disease JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 161 OP 161 DO 10.1136/gut.2003.027730 VO 53 IS 2 A1 G Singh A1 S Sarkar A1 K Manoj A1 C Shorrock A1 P Isaacs YR 2004 UL http://gut.bmj.com/content/53/2/161.abstract AB