PT - JOURNAL ARTICLE ED - , TI - Corrections AID - 10.1136/bjsm.2007.042325corr1 DP - 2011 Feb 01 TA - British Journal of Sports Medicine PG - 154--154 VI - 45 IP - 2 4099 - http://bjsm.bmj.com/content/45/2/154.3.short 4100 - http://bjsm.bmj.com/content/45/2/154.3.full SO - Br J Sports Med2011 Feb 01; 45