Lausten, Gunnar Schwarz, and Carl Christian Arnoldi. “Blood Perfusion Uneven in Femoral Head Osteonecrosis: Doppler Flowmetry and Intraosseous Pressure in 12 Cases”. Acta Orthopaedica 64, no. 5 (January 1, 1993): 533–536. Accessed February 22, 2025. https://actaorthop.org/actao/article/view/21786.