title: [Halo ring: its use in facial retentions with cranial support].
mesh_terms: D001915:Braces; D005145:Face / Q000601:surgery*; D006801:Humans; D012886:Skull; D014143:Traction / Q000295:instrumentation* / Q000379:methods
vernacular_title: Halo-ring: son utilisation dans les contentions faciales à appui crânien