RT Journal Article SR Electronic T1 Re: Terminology Concerning Specific Activity of Radiopharmaceuticals—Reply JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 392 OP 393 VO 22 IS 4 A1 Alfred P. Wolf YR 1981 UL http://jnm.snmjournals.org/content/22/4/392.2.abstract AB