title: Effect of adding selegiline to levodopa in early, mild Parkinson's disease. Formal systematic review of data on patients in all relevant trials is required.
authors.forename: C
authors.initials: C
authors.lastname: Counsell
mesh_terms: D000978:Antiparkinson Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004338:Drug Combinations; D005500:Follow-Up Studies; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use*; D010300:Parkinson Disease / Q000188:drug therapy*; D012642:Selegiline / Q000627:therapeutic use*
chemical_list: D000978:Antiparkinson Agents; D004338:Drug Combinations; D012642:Selegiline; D007980:Levodopa