title: Parkinson's disease and dementia.
mesh_terms: D003072:Cognition Disorders / Q000209:etiology; D003704:Dementia / Q000209:etiology* / Q000378:metabolism; D006801:Humans; D018377:Neurotransmitter Agents / Q000378:metabolism; D010300:Parkinson Disease / Q000150:complications* / Q000378:metabolism / Q000523:psychology
chemical_list: D018377:Neurotransmitter Agents