PT - JOURNAL ARTICLE AU - Michael Cullen TI - Commentary AID - 10.1136/bjsm.35.1.53 DP - 2001 Feb 01 TA - British Journal of Sports Medicine PG - 53--53 VI - 35 IP - 1 4099 - http://bjsm.bmj.com/content/35/1/53.short 4100 - http://bjsm.bmj.com/content/35/1/53.full SO - Br J Sports Med2001 Feb 01; 35