S. M. O'Brien, J. P. Jacobs, D. R. Clarke, B. Maruszewski, M. L. Jacobs, W. I. H. L., C. I. Tchervenkov, K. F. Welke, Z. Tobota, G. Stellin, C. Mavroudis, J. L. Hamilton, J. W. Gaynor, M. Pozzi, and F. G. Lacour-Gayet. Accuracy of the Aristotle Basic Complexity Score for Classifying the Mortality and Morbidity Potential of Congenital Heart Surgery Operations. The Annals of Thoracic Surgery, Elsevier, volume 84, issue 6, pages 2027-2037, December 2007. F. Lacour-Gayet, D. Clarke, J. Jacobs, J. Comas, S. Daebritz, W. Daenen, W. Gaynor, L. Hamilton, M. Jacobs, B. Maruszsewski, M. Pozzi, T. Spray, G. Stellin, C. Tchervenkov, and C. Mavroudis. The Aristotle score: a complexity-adjusted method to evaluate surgical results. European Journal of Cardio-Thoracic Surgery, volume 25, issue 6, pages 911-924, 2004. F. Lacour-Gayet, D. Clarke, J. Jacobs, W. Gaynor, L. Hamilton, M. Jacobs, B. Maruszewski, M. Pozzi, T. Spray, C. Tchervenkov, and C. Mavroudis. The Aristotle score for congenital heart surgery. Seminars in Thoracic & Cardiovascular Surgery: Pediatric Cardiac Surgery Annual, Elsevier, volume 7, issue 1, pages 185-191, 2004.