title: Synergism between acetylcholine and histamine. Multivalent receptive substances in cells of end organs: a theory. (Preliminary note).
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D004347:Drug Interactions; D006632:Histamine / Q000494:pharmacology*; D009132:Muscles / Q000494:pharmacology*; D009411:Nerve Endings / Q000502:physiology*
chemical_list: D006632:Histamine; D000109:Acetylcholine
keywords: ACETYLCHOLINE/pharmacology; HISTAMINE/pharmacology; MUSCLES/pharmacology; NERVE ENDINGS/physiology