RT Journal Article SR Electronic T1 Is unintentional doping real, or just an excuse? 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 978 OP 979 DO 10.1136/bjsports-2017-097614 VO 53 IS 15 A1 Derwin King Chung Chan A1 Tracy Chor Wai Tang A1 Patrick Shu-Hang Yung A1 Daniel F Gucciardi A1 Martin S Hagger YR 2019 UL http://bjsm.bmj.com/content/53/15/978.abstract AB