title: Occult subacute thyroiditis--diagnostic challenge.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D007457:Iodine Radioisotopes; D008297:Male; D008875:Middle Aged; D013966:Thyroiditis / Q000175:diagnosis*; D013974:Thyroxine / Q000097:blood
chemical_list: D007457:Iodine Radioisotopes; D013974:Thyroxine