S. Holinski, B. Claus, T. Christ, R. Kasperiunaite, and W. Konertz, “Overestimation of the Operative Risk by the EuroSCORE Also in High-Risk Patients Undergoing Aortic Valve Replacement with a Stentless Biological Prosthesis”, HSF, vol. 13, no. 1, pp. E13-E16, Feb. 2010.