Thillemann, T. M., Pedersen, A. B., Johnsen, S. P., & Søballe, K. (2008). Implant survival after primary total hip arthroplasty due to childhood hip disorders Results from the Danish Hip Arthroplasty Registry. Acta Orthopaedica, 79(6), 769–776. https://doi.org/10.1080/17453670810016830