title: Vasodilating headache: a suggested classification and results of prophylactic treatment with UML 491 (methysergide).
mesh_terms: D006261:Headache / Q000628:therapy*; D008238:Lysergic Acid Diethylamide / Q000031:analogs & derivatives; D008784:Methysergide
chemical_list: D008238:Lysergic Acid Diethylamide; D008784:Methysergide
keywords: HEADACHE/therapy; LYSERGIC ACID DIETHYLAMIDE/related compounds