RT Journal Article SR Electronic T1 Orthopaedic and sports physical therapy JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 184 OP 184 DO 10.1136/bjsm.20.4.184 VO 20 IS 4 A1 England, Susan A1 John, Margaret YR 1986 UL http://bjsm.bmj.com/content/20/4/184.abstract AB