title: Nuclear magnetic resonance studies of the conformation and electron distributions in nicotine and in acetylcholine.
mesh_terms: D000109:Acetylcholine; D002247:Carbon Isotopes; D004583:Electrons; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D009538:Nicotine; D009584:Nitrogen; D011725:Pyridines; D013329:Structure-Activity Relationship
chemical_list: D002247:Carbon Isotopes; D011725:Pyridines; D009538:Nicotine; D009584:Nitrogen; D000109:Acetylcholine