title: Headaches.
authors.affiliation: Department of Neurology, Gloucester Royal Hospital, Gloucester.
authors.forename: Geraint
authors.initials: G
authors.lastname: Fuller
authors.forename: Claire
authors.initials: C
authors.lastname: Kaye
mesh_terms: D020773:Headache Disorders / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D008487:Medical History Taking; D017410:Practice Guidelines as Topic; D012008:Recurrence; D019966:Substance-Related Disorders