RT Journal Article SR Electronic T1 Radioisotopes in Radiodiagnosis JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 751 OP 751 VO 18 IS 7 A1 Robert B. Chodos YR 1977 UL http://jnm.snmjournals.org/content/18/7/751.2.abstract AB