title: Proceedings: Does the giant cerebral neurone of Helix release two transmitters: ACh and serotonin?
mesh_terms: D000109:Acetylcholine / Q000502:physiology*; D000818:Animals; D006372:Helix, Snails / Q000502:physiology*; D066298:In Vitro Techniques; D009474:Neurons / Q000502:physiology*; D012701:Serotonin / Q000502:physiology*; D012908:Snails / Q000502:physiology*
chemical_list: D012701:Serotonin; D000109:Acetylcholine