RT Journal Article SR Electronic T1 Aids to Definition in X-Ray Work JF Journal of the Royal Army Medical Corps JO J R Army Med Corps FD British Medical Journal Publishing Group SP 35 OP 44 DO 10.1136/jramc-34-01-03 VO 34 IS 1 A1 Lang, B. T. YR 1920 UL http://militaryhealth.bmj.com/content/34/1/35.abstract AB