RT Journal Article SR Electronic T1 A Closer Look at the Latest NRC Patient Release Guidance JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 17N OP 20N VO 49 IS 7 A1 Jeffry A. Siegel A1 Edward B. Silberstein YR 2008 UL http://jnm.snmjournals.org/content/49/7/17N.abstract AB