RT Journal Article SR Electronic T1 Lines from the President: Dispelling the Confusion about Radiation Safety in Medicine JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 34N OP 40N VO 34 IS 3 A1 Paul H. Murphy YR 1993 UL http://jnm.snmjournals.org/content/34/3/34N.abstract AB