title: Greater diagnostic accuracy with unique "free T-4" thyroid function test than with "free thyroxine index".
mesh_terms: D006801:Humans; D013959:Thyroid Diseases / Q000175:diagnosis*; D013960:Thyroid Function Tests / Q000379:methods*; D013974:Thyroxine / Q000032:analysis*
chemical_list: D013974:Thyroxine