title: Serum thyroxine and triiodothyronine in patients receiving increasing doses of L-thyroxine.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D007037:Hypothyroidism / Q000188:drug therapy; D013974:Thyroxine / Q000097:blood* / Q000627:therapeutic use*; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D014284:Triiodothyronine; D013974:Thyroxine