RT Journal Article SR Electronic T1 Regulation of PET Radiopharmaceuticals JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 34N OP 34N VO 32 IS 4 A1 Sarah M. Tilyou YR 1991 UL http://jnm.snmjournals.org/content/32/4/34N.abstract AB