Slappendel, Robert, Ris Dirksen, Eric Weber, and Dick van der Schaaf. “An Algorithm to Reduce Allogenic Red Blood Cell Transfusions for Major Orthopedic Surgery”. Acta Orthopaedica 74, no. 5 (January 1, 2003): 569–575. Accessed May 1, 2026. https://actaorthop.org/actao/article/view/19792.