title: The first report of cluster headache in identical twins.
authors.affiliation: Princess Margaret Migraine Clinic, Charing Cross and Westminister Medical School, London, UK.
authors.forename: E G
authors.initials: EG
authors.lastname: Couturier
authors.forename: R
authors.initials: R
authors.lastname: Hering
authors.forename: T J
authors.initials: TJ
authors.lastname: Steiner
mesh_terms: D000280:Administration, Inhalation; D000328:Adult; D003027:Cluster Headache / Q000188:drug therapy / Q000235:genetics* / Q000503:physiopathology; D004200:Diseases in Twins; D004878:Ergotamine / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D008094:Lithium / Q000627:therapeutic use; D008297:Male; D014430:Twins, Monozygotic
chemical_list: D008094:Lithium; D004878:Ergotamine