Raugstad, T. S., K. Harbo, A. Høgberg, and S. Skeie. “Anterior Interbody Fusion of the Lumbar Spine”. Acta Orthopaedica 53, no. 4 (January 1, 1982): 561–565. Accessed May 4, 2026. https://actaorthop.org/actao/article/view/28703.