RT Journal Article SR Electronic T1 A Half-Century of Nuclear Medicine JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 40S OP 42S VO 48 IS Supplement 1 A1 J. Tyler Middlebrooks YR 2020 UL http://tech.snmjournals.org/content/48/Supplement_1/40S.abstract AB