Киселев, А., & Кротенков, П. (2007). Posttraumatic axis dens pseudoarthrosis: report of 12 cases managed via modified craniocervical fusion and anterior screw fixation. Bulletin of the International Scientific Surgical Association, 2(2-3), 27-31. Retrieved from http://surgjournal.ru/index.php/BISSA/article/view/193