RT Journal Article SR Electronic T1 The Use of the Pulheems System of Medical Classification in Civilian Practice JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 202 OP 209 DO 10.1136/oem.13.3.202 VO 13 IS 3 A1 Warren, M. D. YR 1956 UL http://oem.bmj.com/content/13/3/202.abstract AB