Pedersen, A. B., Johnsen, S. P., Overgaard, S., Søballe, K., Sørensen, H. T., & Lucht, U. (2005). Regional variation in incidence of primary total hip arthroplasties and revisions in Denmark, 1996–2002. Acta Orthopaedica, 76(6), 815–822. https://doi.org/10.1080/17453670510045426