Nungu, Samwel, Claes Olerud, and Lars Rehnberg. “The Incidence of Hip Fracture in Uppsala County: Change of Time Trend in Women”. Acta Orthopaedica 64, no. 1 (January 1, 1993): 75–78. Accessed May 28, 2026. https://actaorthop.org/actao/article/view/21705.