RT Journal Article SR Electronic T1 Protection of the Patient in X-ray Diagnosis. ICRP Publication 16 JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 209 OP 209 DO 10.1136/oem.28.2.209 VO 28 IS 2 A1 Stephenson, S. K. YR 1971 UL http://oem.bmj.com/content/28/2/209.1.abstract AB