RT Journal Article SR Electronic T1 Resolution Limit of Positron Cameras JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 757 OP 757 VO 17 IS 8 A1 G. Muehllehner YR 1976 UL http://jnm.snmjournals.org/content/17/8/757.1.abstract AB