RT Journal Article SR Electronic T1 Corrections 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 766 OP 766 DO 10.1136/bjsports-2012-091022cor1 VO 46 IS 10 YR 2012 UL http://bjsm.bmj.com/content/46/10/766.2.abstract AB