TY - JOUR T1 - EDITORIAL JF - British Journal of Sports Medicine JO - Br J Sports Med SP - 2 LP - 2 DO - 10.1136/bjsm.13.1.2 VL - 13 IS - 1 AU - H. Robson Y1 - 1979/04/01 UR - http://bjsm.bmj.com/content/13/1/2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -