Svend-Hansen, H., V. Bremerskov, J. Gøtrich, and P. Ostri. “Low-Dose Heparin in Proximal Femoral Fractures: Failure to Prevent Deep-Vein Thrombosis”. Acta Orthopaedica 52, no. 1 (January 1, 1981): 77–80. Accessed May 17, 2026. https://actaorthop.org/actao/article/view/28812.