Havelin, Leif I, Anne M Fenstad, Roger Salomonsson, Frank Mehnert, Ove Furnes, Søren Overgaard, Alma B Pedersen, Peter Herberts, Johan Kärrholm, and Göran Garellick. “The Nordic Arthroplasty Register Association”. Acta Orthopaedica 80, no. 4 (January 1, 2009): 393–401. Accessed April 23, 2026. https://actaorthop.org/actao/article/view/18786.