title: Therapeutic action of D-phenylalanine in Parkinson's disease.
mesh_terms: D003863:Depression / Q000188:drug therapy / Q000209:etiology; D006801:Humans; D010300:Parkinson Disease / Q000150:complications / Q000188:drug therapy*; D010649:Phenylalanine / Q000627:therapeutic use*
chemical_list: D010649:Phenylalanine