Aging and the thyroid.
D000375:Aging; D006801:Humans; D007037:Hypothyroidism / Q000175:diagnosis*; D013974:Thyroxine / Q000378:metabolism; D014284:Triiodothyronine / Q000378:metabolism; D014285:Triiodothyronine, Reverse / Q000378:metabolism
D014284:Triiodothyronine; D014285:Triiodothyronine, Reverse; D013974:Thyroxine