RT Journal Article SR Electronic T1 The Year Book of Orthopaedics, Traumatic and Plastic Surgery JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 160 OP 161 DO 10.1136/oem.25.2.160-a VO 25 IS 2 A1 Wheble, V. A. YR 1968 UL http://oem.bmj.com/content/25/2/160.2.abstract AB