title: Parkinsonism, L-dopa, and intelligence.
mesh_terms: D000367:Age Factors; D000368:Aged; D000375:Aging; D004295:Dihydroxyphenylalanine / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D007360:Intelligence / Q000187:drug effects*; D007361:Intelligence Tests; D010300:Parkinson Disease / Q000188:drug therapy*; D013997:Time Factors
chemical_list: D004295:Dihydroxyphenylalanine