PT - JOURNAL ARTICLE ED - , TI - Evidence based journal watch DP - 2007 Feb 01 TA - British Journal of Sports Medicine PG - 116--117 VI - 41 IP - 2 4099 - http://bjsm.bmj.com/content/41/2/116.short 4100 - http://bjsm.bmj.com/content/41/2/116.full SO - Br J Sports Med2007 Feb 01; 41