JägerM., A. van Wasen, S. Warwas, S. Landgraeber, M. Haversath, and V. Group. “A Multicenter Approach Evaluating the Impact of Vitamin E-Blended Polyethylene in Cementless Total Hip Replacement”. Orthopedic Reviews, Vol. 6, no. 2, Apr. 2014, doi:10.4081/or.2014.5285.