TY - JOUR T1 - Lt. Col. J. W. Graham JF - British Journal of Sports Medicine JO - Br J Sports Med SP - 262 LP - 262 DO - 10.1136/bjsm.12.4.262 VL - 12 IS - 4 AU - H. E. Robson Y1 - 1978/12/01 UR - http://bjsm.bmj.com/content/12/4/262.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -