The os odontoideum. A case report.
D001132:Arm; D001368:Axis, Cervical Vertebra / Q000002:abnormalities* / Q000293:injuries; D001270:Cervical Atlas / Q000002:abnormalities* / Q000293:injuries; D002574:Cervical Vertebrae / Q000002:abnormalities*; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010243:Paralysis / Q000209:etiology