[1]
L. I. Havelin, B. Espehaug, S. E. Vollset, and L. B. Engesaeter, “Early failures among 14,009 cemented and 1,326 uncemented prostheses for primary coxarthrosis: The Norwegian Arthroplasty Register, 1987-1992”, ActaO, vol. 65, no. 1, pp. 1–6, Jan. 1994.