title: The chronic paroxysmal hemicrania concept expanded.
authors.forename: E L
authors.initials: EL
authors.lastname: Spierings
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003027:Cluster Headache / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007213:Indomethacin / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D014653:Vascular Headaches / Q000188:drug therapy*
chemical_list: D007213:Indomethacin