Robertsson O, Dunbar M, Knutson K, Lewold S, Lidgren L. Validation of the Swedish Knee Arthroplasty Register: A postal survey regarding 30,376 knees operated on between 1975 and 1995. ActaO [Internet]. 1999 Jan. 1 [cited 2025 Feb. 23];70(5):467-72. Available from: https://actaorthop.org/actao/article/view/20461