RT Journal Article SR Electronic T1 Measurement of Serum Triiodothyronine Concentrations—Reply JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 666 OP 667 VO 17 IS 7 A1 Kenneth D. Burman A1 Frances D. Wright A1 Jerry M. Earll A1 Leonard Wartofsky YR 1976 UL http://jnm.snmjournals.org/content/17/7/666.abstract AB