Sernbo, Ingemar, Olof Johnell, Lars Bååth, and Jan-Åke Nilsson. “Internal Fixation of 410 Cervical Hip Fractures: A Randomized Comparison of a Single Nail Versus Two Hook-Pins”. Acta Orthopaedica 61, no. 5 (January 1, 1990): 411–414. Accessed May 10, 2026. https://actaorthop.org/actao/article/view/22404.