RT Journal Article SR Electronic T1 Technetium-99m-HMPAO Cerebral Perfusion Scintigraphy: Considerations for Timely Brain Death Declaration JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 2209 OP 2211 VO 33 IS 12 A1 Gerald N. Larar A1 James S. Nagel YR 1992 UL http://jnm.snmjournals.org/content/33/12/2209.abstract AB