Furnes, O., Espehaug, B., Lie, S. A., Vollset, S. E., Engesaeter, L. B., & Havelin, L. I. (2002). Early failures among 7,174 primary total knee replacements: A follow-up study from the Norwegian Arthroplasty Register 1994-2000. Acta Orthopaedica, 73(2), 117–129. https://doi.org/10.1080/000164702753671678