RT Journal Article SR Electronic T1 Bright spots, physical activity investments that work: Sweatcoin: a steps generated virtual currency for sustained physical activity behaviour change 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 1195 OP 1196 DO 10.1136/bjsports-2018-099739 VO 53 IS 18 A1 Derlyatka, Anton A1 Fomenko, Oleg A1 Eck, Felicia A1 Khmelev, Egor A1 Elliott, Mark T YR 2019 UL http://bjsm.bmj.com/content/53/18/1195.abstract AB