van Lenthe, G Harry, Marieke M M Willems, Nico Verdonschot, Maarten C de Waal Malefijt, and Rik Huiskes. 2002. “Stemmed Femoral Knee Prostheses”. Acta Orthopaedica 73 (6):630-37. https://doi.org/10.3109/17453670209178027.