RT Journal Article SR Electronic T1 The Authors' Reply JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 915 OP 916 VO 15 IS 10 A1 Robert E. Henkin A1 James S. T. Yao A1 James L. Quinn III A1 John J. Bergen YR 1974 UL http://jnm.snmjournals.org/content/15/10/915.2.abstract AB