RT Journal Article SR Electronic T1 Influence of Collimator Characteristics on Quantification in SPECT JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1832 OP 1836 VO 37 IS 11 A1 John S. Fleming A1 Abdulaziz S. Alaamer YR 1996 UL http://jnm.snmjournals.org/content/37/11/1832.abstract AB