RT Journal Article SR Electronic T1 Program for PET Image Alignment: Effects on Calculated Differences in Cerebral Metabolic Rates for Glucose JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 2052 OP 2057 VO 31 IS 12 A1 Robert L. Phillips A1 Edythe D. London A1 Jonathan M. Links A1 Nicola G. Cascella YR 1990 UL http://jnm.snmjournals.org/content/31/12/2052.abstract AB