Tsui, J K A double-blind, placebo-controlled, dose-ranging study to investigate the safety and efficacy of CY 208-243 in patients with Parkinson's disease. [electronic resource] - Neurology Jun 1989 - 856-8 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0028-3878 Standard No.: 10.1212/wnl.39.6.856 doi Subjects--Topical Terms: Dose-Response Relationship, DrugDouble-Blind MethodFemaleHumansIndoles--adverse effectsMaleMiddle AgedParkinson Disease--drug therapyPhenanthridines--adverse effectsPlacebos