RT Journal Article SR Electronic T1 Mr. H. L. Davies, F.R.C.S 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 26 OP 26 DO 10.1136/bjsm.6.1.26 VO 6 IS 1 YR 1971 UL http://bjsm.bmj.com/content/6/1/26.abstract AB