RT Journal Article SR Electronic T1 The lower extremity and spine in sports medicine 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 188 OP 188 DO 10.1136/bjsm.20.4.188 VO 20 IS 4 A1 King, J. B. YR 1986 UL http://bjsm.bmj.com/content/20/4/188.abstract AB