L-dopa and the negative symptoms of Parkinsonism.
D004295:Dihydroxyphenylalanine / Q000494:pharmacology / Q000627:therapeutic use*; D004298:Dopamine / Q000502:physiology; D006801:Humans; D010300:Parkinson Disease / Q000188:drug therapy* / Q000503:physiopathology; D012018:Reflex
D004295:Dihydroxyphenylalanine; D004298:Dopamine