RT Journal Article SR Electronic T1 Gastrointestinal intraepithelial lymphocytes and T cell lymphomas JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 163 OP 164 DO 10.1136/gut.52.2.163 VO 52 IS 2 A1 I N Farstad A1 K E A Lundin YR 2003 UL http://gut.bmj.com/content/52/2/163.abstract AB