title: The International Headache Society: The history of its founding.
authors.affiliation: Department of Neurology, St. Olavs Hospital, Trondheim University Hospitals (NTNU), Trondheim, Norway.
authors.forename: Ottar
authors.initials: O
authors.lastname: Sjaastad
mesh_terms: D006261:Headache; D049673:History, 20th Century; D006801:Humans; D012955:Societies, Medical / Q000266:history*