RT Journal Article SR Electronic T1 Congressional Subcommittee Scrutinizes Looming U.S. Radioisotope Supply Crisis JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 16N OP 34N VO 33 IS 10 A1 Rojas-Burke, J. YR 1992 UL http://jnm.snmjournals.org/content/33/10/16N.abstract AB