Neuro-humoral regulations in the aging organism.
D000109:Acetylcholine / Q000096:biosynthesis*; D000375:Aging / Q000502:physiology*; D000818:Animals; D002415:Cats; D010275:Parasympathetic Nervous System / Q000502:physiology*; D011817:Rabbits; D051381:Rats
D000109:Acetylcholine