RT Journal Article SR Electronic T1 The End Seems Always to Be Near JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 7A OP 7A VO 40 IS 4 A1 Bolus, Norman E. YR 2012 UL http://tech.snmjournals.org/content/40/4/7A.abstract AB