RT Journal Article SR Electronic T1 Measurement Method for Radioactive Thyroxine, Triiodothyronine, Iodide, and Iodoprotein in Samples with Low Activity JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 225 OP 232 VO 21 IS 3 A1 Marguerite T. Hays A1 Robert A. McGuire A1 Johannes Th. Hoogeveen A1 Kim N. Diezeraad YR 1980 UL http://jnm.snmjournals.org/content/21/3/225.abstract AB