title: Free thyroxin in serum: labeled thyroxin-analog methods fall short of their mark.
mesh_terms: D001798:Blood Proteins / Q000378:metabolism; D006801:Humans; D007457:Iodine Radioisotopes; D011485:Protein Binding; D013974:Thyroxine / Q000031:analogs & derivatives / Q000097:blood*
chemical_list: D001798:Blood Proteins; D007457:Iodine Radioisotopes; D013974:Thyroxine