Slullitel, Gaston, Alejandro González Della Valle, Martin Buttaro, and Francisco Piccaluga. 2003. “Early Bead Shedding of the Vitalock Acetabular Cup-a Report on 7 Cases”. Acta Orthopaedica 74 (6):658-60. https://doi.org/10.1080/00016470310018153.