title: Free triiodothyronine in serum in relation to thyroid function.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000097:blood; D010672:Phenytoin / Q000627:therapeutic use; D011247:Pregnancy; D011863:Radioimmunoassay; D013959:Thyroid Diseases / Q000097:blood*; D013975:Thyroxine-Binding Proteins / Q000378:metabolism; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D013975:Thyroxine-Binding Proteins; D014284:Triiodothyronine; D010672:Phenytoin