title: An investigation of the inhibitory transmitter substances in the heart of the mollusc Tapes Watlingi.
mesh_terms: D000109:Acetylcholine / Q000032:analysis* / Q000378:metabolism; D000818:Animals; D002850:Chromatography, Gel; D002854:Chromatography, Paper; D005724:Ganglia / Q000378:metabolism; D006329:Heart Conduction System; D007082:Ileum / Q000187:drug effects; D008974:Mollusca; D009206:Myocardium / Q000032:analysis*; D018377:Neurotransmitter Agents / Q000032:analysis*; D010477:Perfusion
chemical_list: D018377:Neurotransmitter Agents; D000109:Acetylcholine