Ragnarsson, Jón Ingvar, Lars ingvar Hansson, and Johan Kärrholm. “Stability of Femoral Neck Fractures: A Postoperative Roentgen Stereophotogrammetric Analysis”. Acta Orthopaedica 60, no. 3 (January 1, 1989): 283–287. Accessed April 28, 2026. https://actaorthop.org/actao/article/view/22567.