title: Aetiology and natural history of Parkinson's disease.
mesh_terms: D000368:Aged; D001284:Atrophy; D001921:Brain / Q000473:pathology; D004298:Dopamine / Q000172:deficiency; D005260:Female; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D018377:Neurotransmitter Agents / Q000502:physiology; D010300:Parkinson Disease / Q000188:drug therapy / Q000209:etiology* / Q000401:mortality; D011379:Prognosis; D013378:Substantia Nigra / Q000503:physiopathology
chemical_list: D018377:Neurotransmitter Agents; D007980:Levodopa; D004298:Dopamine