ÖNNERFÄLT, Rolf; FRANZÉN, Herbert. Separation of plastic and metal in an acetabular cup. Acta Orthopaedica, [S. l.], v. 62, n. 5, p. 489–490, 1991. DOI: 10.3109/17453679108996653. Disponível em: https://actaorthop.org/actao/article/view/22304. Acesso em: 4 may. 2026.