1. Connection of the os odontoideum with the body of the axis vertebra;Cunningham;J Anat Physiol,1886
2. Os odontoideum;Rozzelle;Neurosurgery,2013
3. Os odontoideum: a comprehensive clinical and surgical review;Jumah;Cureus,2017
4. Os odontoideum: etiology and surgical management;Arvin;Neurosurgery,2010
5. Craniocervical developmental anatomy and its implications;Menezes;Childs Nerv Syst,2008