title: [Letter: Double blind study of hydergine in aged patients].
mesh_terms: D000367:Age Factors; D000368:Aged; D002561:Cerebrovascular Disorders / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004088:Dihydroergotoxine / Q000627:therapeutic use*; D004341:Drug Evaluation; D004877:Ergoloid Mesylates / Q000627:therapeutic use*; D006801:Humans; D010919:Placebos
chemical_list: D010919:Placebos; D004088:Dihydroergotoxine; D004877:Ergoloid Mesylates
vernacular_title: Etude en double aveugle de l'hydergine chez le sujet âgé