PT - JOURNAL ARTICLE ED - , TI - Discussion AID - 10.1136/bjsm.8.1.45 DP - 1974 Apr 01 TA - British Journal of Sports Medicine PG - 45--45 VI - 8 IP - 1 4099 - http://bjsm.bmj.com/content/8/1/45.short 4100 - http://bjsm.bmj.com/content/8/1/45.full SO - Br J Sports Med1974 Apr 01; 8