PT - JOURNAL ARTICLE ED - , TI - Corrections AID - 10.1136/bjsm.2009.062232cor1 DP - 2012 Jul 01 TA - British Journal of Sports Medicine PG - 688--688 VI - 46 IP - 9 4099 - http://bjsm.bmj.com/content/46/9/688.2.short 4100 - http://bjsm.bmj.com/content/46/9/688.2.full SO - Br J Sports Med2012 Jul 01; 46