title: The future of headache classification and classification research.
authors: Jes
authors: J
authors: Olesen
mesh_terms: D032921:Consensus; D006261:Headache / Q000145:classification* / Q000175:diagnosis*; D006801:Humans; D009462:Neurology / Q000592:standards* / Q000639:trends*; D017410:Practice Guidelines as Topic