title: Improving quality of life in early Parkinson's.
mesh_terms: D000368:Aged; D000978:Antiparkinson Agents / Q000627:therapeutic use*; D002396:Catechols / Q000627:therapeutic use*; D004357:Drug Synergism; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D009570:Nitriles; D010300:Parkinson Disease / Q000188:drug therapy*; D011788:Quality of Life
chemical_list: D000978:Antiparkinson Agents; D002396:Catechols; D009570:Nitriles; D007980:Levodopa; C071192:entacapone