RT Journal Article SR Electronic T1 EDITORIAL 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 3 OP 5 DO 10.1136/bjsm.15.1.3 VO 15 IS 1 YR 1981 UL http://bjsm.bmj.com/content/15/1/3.abstract AB