title: Serum triiodothyronine in simple nontoxic goiter in Sicily.
mesh_terms: D006043:Goiter, Endemic / Q000097:blood*; D006801:Humans; D012802:Sicily; D013972:Thyrotropin / Q000097:blood; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D014284:Triiodothyronine; D013972:Thyrotropin; D013974:Thyroxine