Byström, Sven, Birgitte Espehaug, Ove Furnes, and Leif Havelin. 2003. “Femoral Head Size Is a Risk Factor for Total Hip LuxationA Study of 42,987 Primary Hip Arthroplasties from the Norwegian Arthroplasty Register”. Acta Orthopaedica 74 (5):514-24. https://doi.org/10.1080/00016470310017893.