RT Journal Article SR Electronic T1 Nuclear Regulation: Toward a Balanced Perspective JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 17N OP 32N VO 34 IS 10 A1 Shanahan, Maryanne YR 1993 UL http://jnm.snmjournals.org/content/34/10/17N.abstract AB