title: Analysis of deaths in Parkinson patients on long-term levodopa therapy.
mesh_terms: D000368:Aged; D001921:Brain / Q000473:pathology; D004295:Dihydroxyphenylalanine / Q000008:administration & dosage / Q000009:adverse effects*; D006801:Humans; D008134:Long-Term Care; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology
chemical_list: D004295:Dihydroxyphenylalanine