K. . Dyreborg, M. R. . Andersen, N. . Winther, S. . Solgaard, G. . Flivik, and M. M. . Petersen, “Migration of the uncemented Echo Bi-Metric and Bi-Metric THA stems: a randomized controlled RSA study involving 62 patients with 24-month follow-up”, ActaO, vol. 91, no. 6, pp. 693–698 , Aug. 2020.