title: [Theory and practice of the cervical headgear].
mesh_terms: D001696:Biomechanical Phenomena; D002648:Child; D005115:Extraoral Traction Appliances; D006801:Humans; D009968:Orthodontic Appliances, Removable; D009971:Orthodontics, Corrective / Q000295:instrumentation*
vernacular_title: Theorie und Praxis des zervikalen Headgears.