RT Journal Article SR Electronic T1 Competing at the top level with Crohn’s disease JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 365 OP 366 DO 10.1136/bjsports-2019-100807 VO 54 IS 6 A1 Treasure, Alyx YR 2020 UL http://bjsm.bmj.com/content/54/6/365.abstract AB