Erp, Joost H J Van, et al. “A Vitamin E Blended Highly Cross-Linked Polyethylene Acetabular Cup Results in Less Wear: 6-Year Results of a Randomized Controlled Trial in 199 Patients”. Acta Orthopaedica, vol. 91, no. 6, Aug. 2020, pp. 705–710 , doi:10.1080/17453674.2020.1807220.