Haakonsen, Marianne, Tor E Gudmundsen, and Olav Histøl. “Midline Anterior and Posterior Atlas Clefts May Simulate a Jefferson fracture:A Report of 2 Cases”. Acta Orthopaedica 66, no. 4 (January 1, 1995): 369–371. Accessed June 26, 2026. https://actaorthop.org/actao/article/view/21216.