title: Letter: Propranolol in Parkinson's disease.
mesh_terms: D004295:Dihydroxyphenylalanine / Q000627:therapeutic use; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D006801:Humans; D010300:Parkinson Disease / Q000150:complications / Q000188:drug therapy*; D010919:Placebos; D011433:Propranolol / Q000008:administration & dosage / Q000627:therapeutic use*; D014202:Tremor / Q000150:complications / Q000188:drug therapy
chemical_list: D010919:Placebos; D004295:Dihydroxyphenylalanine; D011433:Propranolol