M. M. Elahi, K. A. Osman, M. Bhandari, and R. R. V. Dhannapuneni, “Does the Type of Prosthesis Influence the Incidence of Permanent Pacemaker Implantation Following Isolated Aortic Valve Replacement”, HSF, vol. 8, no. 6, pp. E396-E400, Oct. 2005.