title: Effects of beta blockade on contingent negative variation in migraine.
mesh_terms: D000328:Adult; D003265:Contingent Negative Variation / Q000187:drug effects*; D004594:Electrophysiology / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D008790:Metoprolol / Q000627:therapeutic use*; D008881:Migraine Disorders / Q000188:drug therapy*
chemical_list: D008790:Metoprolol