title: Spontaneous anterior dislocation of the atlas. Case reports.
mesh_terms: D000328:Adult; D001270:Cervical Atlas / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography