RT Journal Article SR Electronic T1 Seventy-five-year-old man with unexplained weight loss and alopecia JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP gutjnl-2019-319013 DO 10.1136/gutjnl-2019-319013 A1 Elmer Hoekstra A1 Jaap van der Laan A1 Michael van der Voorn YR 2019 UL http://gut.bmj.com/content/early/2019/06/27/gutjnl-2019-319013.abstract AB