title: Catecholamine neuron systems in brain.
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology / Q000502:physiology*; D002395:Catecholamines / Q000502:physiology*; D004298:Dopamine / Q000502:physiology; D008322:Mammals; D009474:Neurons / Q000502:physiology*; D009638:Norepinephrine / Q000502:physiology
chemical_list: D002395:Catecholamines; D004298:Dopamine; D009638:Norepinephrine