PT - JOURNAL ARTICLE ED - , TI - EDITORIAL AID - 10.1136/bjsm.14.1.3 DP - 1980 Mar 01 TA - British Journal of Sports Medicine PG - 3--4 VI - 14 IP - 1 4099 - http://bjsm.bmj.com/content/14/1/3.short 4100 - http://bjsm.bmj.com/content/14/1/3.full SO - Br J Sports Med1980 Mar 01; 14