Hentzer, Lise, and Marcus Schalimtzek. “Fractures and Subluxations of the Atlas and Axis: A Follow-up Study of 20 Patients”. Acta Orthopaedica 42, no. 3 (January 1, 1971): 251–258. Accessed May 14, 2026. https://actaorthop.org/actao/article/view/29874.