title: [Chronic migraine, a new and necessary concept].
authors.affiliation: Estudio de Cefaleas de Sociedad Española de Neurología, Unidad de Cefaleas-Neurología, Hospital Francesc de Borja, Gandía, Valencia. sdiazinsa@yahoo.es
authors.forename: Samuel
authors.initials: S
authors.lastname: Díaz-Insa
mesh_terms: D002908:Chronic Disease; D006801:Humans; D008881:Migraine Disorders / Q000145:classification / Q000188:drug therapy / Q000453:epidemiology / Q000503:physiopathology / Q000517:prevention & control