RT Journal Article SR Electronic T1 Regulation of PET Radiopharmaceuticals, NDA for 99mTc HMPAO, and the Gastric Emptying Petition JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 137 OP 140 VO 30 IS 2 A1 Sarah Tilyou YR 1989 UL http://jnm.snmjournals.org/content/30/2/137.abstract AB