title: Levodopa treatment may benefit or impair "frontal" function in Parkinson's disease.
mesh_terms: D000368:Aged; D003071:Cognition / Q000187:drug effects*; D006801:Humans; D007980:Levodopa / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy*
chemical_list: D007980:Levodopa