Saikko, Vesa O. “Wear of Polyethylene Acetabular Cups Against Alumina Femoral Heads: 5 Prostheses Compared in a Hip Simulator for 35 Million Walking Cycles”. Acta Orthopaedica 64, no. 5 (January 1, 1993): 507–512. Accessed May 9, 2026. https://actaorthop.org/actao/article/view/21766.