title: [Investigation of measurement method for serum thyroxine (T4) by radioimmunoassay using polyethyleneglycol (PEG) (author's transl)].
mesh_terms: D005260:Female; D006801:Humans; D011092:Polyethylene Glycols; D011247:Pregnancy; D011863:Radioimmunoassay / Q000379:methods*; D013959:Thyroid Diseases / Q000097:blood; D013974:Thyroxine / Q000097:blood*
chemical_list: D011092:Polyethylene Glycols; D013974:Thyroxine