LevodopaAntiparkinson AgentsParkinson DiseaseCarbidopaBenserazideDyskinesia, Drug-InducedDihydroxyphenylalanineTrihexyphenidylDopamine AgentsDyskinesiasSelegilineBenzophenonesDopamine AgonistsBromocriptineLisurideApomorphineParkinson Disease, PostencephaliticSubthalamic NucleusParkinson Disease, SecondaryDopa DecarboxylaseMovement DisordersParkinsonian DisordersErgolinesDystoniaMuscle RigidityDeep Brain StimulationTremorMotor Skills