title: Parkinsonism and Huntington's chorea.
mesh_terms: D004295:Dihydroxyphenylalanine / Q000009:adverse effects* / Q000378:metabolism; D006801:Humans; D006816:Huntington Disease / Q000378:metabolism*; D010300:Parkinson Disease / Q000188:drug therapy*
chemical_list: D004295:Dihydroxyphenylalanine