title: [Intracranial intrarachindial ependymomas. Preface].
mesh_terms: D001932:Brain Neoplasms / Q000145:classification* / Q000453:epidemiology / Q000503:physiopathology; D004806:Ependymoma / Q000145:classification* / Q000453:epidemiology / Q000503:physiopathology; D005602:France; D006801:Humans; D013120:Spinal Cord Neoplasms / Q000145:classification* / Q000453:epidemiology / Q000503:physiopathology
vernacular_title: 1.--Avant-propos.