RT Journal Article SR Electronic T1 Optimization of Regional Cerebral Blood Flow Measurements with PET JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1934 OP 1936 VO 32 IS 10 A1 Nathaniel Alpert YR 1991 UL http://jnm.snmjournals.org/content/32/10/1934.abstract AB