title: Thyroxine: just a prohormone or a hormone too?
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001769:Blood; D006801:Humans; D007037:Hypothyroidism / Q000097:blood* / Q000188:drug therapy; D007231:Infant, Newborn; D007456:Iodine Isotopes; D008875:Middle Aged; D011863:Radioimmunoassay; D013960:Thyroid Function Tests; D013972:Thyrotropin / Q000097:blood; D013974:Thyroxine / Q000097:blood*; D014284:Triiodothyronine / Q000097:blood* / Q000627:therapeutic use; D014470:Umbilical Cord
chemical_list: D007456:Iodine Isotopes; D014284:Triiodothyronine; D013972:Thyrotropin; D013974:Thyroxine