Long-term treatment of Parkinson's disease with levodopa.
D004295:Dihydroxyphenylalanine / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D008134:Long-Term Care; D010300:Parkinson Disease / Q000188:drug therapy*; D012189:Retrospective Studies
D004295:Dihydroxyphenylalanine