%0 Journal Article %A I. Ross McDougall %A Monika F. Bayer %A David Nierenberg %A Sandra J. Lewis %T Disparate Effects of Heparin on Free Thyroxine as Measured by Two Radioimmunoassays: Concise Communication %D 1982 %J Journal of Nuclear Medicine %P 507-510 %V 23 %N 6 %U https://jnm.snmjournals.org/content/jnumed/23/6/507.full.pdf