1. Instability of the cervical spine after decompression in patients who have Arnold-Chiari malformation;Aronson;J Bone Joint Surg Am,1991
2. Basilar impression (platybasia): A bizarre developmental anomaly of the occipital bone and upper cervical spine with striking and misleading neurologic manifestations;Chamberlain;Yale J Biol Med,1939
3. Congenital defects of the posterior arch of the atlas: A report of seven cases including an affected mother and son;Currarino;AJNR Am J Neuroradiol,1994
4. Basilar impression and Arnold-Chiari malformation: A study of 66 cases;De Barros;J Neurol Neurosurg Psychiatry,1968
5. Os odontoideum: An acquired lesion;Fielding;J Bone Joint Surg Am,1974