title: Transparently blinded trials of methysergide.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic / Q000379:methods; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008784:Methysergide / Q000627:therapeutic use*; D008881:Migraine Disorders / Q000188:drug therapy*
chemical_list: D008784:Methysergide