J. P. Jacobs, M. L. Jacobs, B. Maruszewski, F. G. Lacour-Gayet, C. I. Tchervenkov, Z. Tobota, G. Stellin, H. Kurosawa, A. Murakami, J. W. Gaynor, S. K. Pasquali, D. R. Clarke, E. H. A. III, and C. Mavroudis. Initial application in the EACTS and STS Congenital Heart Surgery Databases of an empirically derived methodology of complexity adjustment to evaluate surgical case mix and results†. European Journal of Cardio-Thoracic Surgery, volume 42, issue 5, pages 775-780, 2012. S. M. O'Brien, D. R. Clarke, J. P. Jacobs, M. L. Jacobs, F. G. Lacour-Gayet, C. Pizarro, K. F. Welke, B. Maruszewski, Z. Tobota, W. J. Miller, L. Hamilton, E. D. Peterson, C. Mavroudis, and F. H. Edwards. An empirically based tool for analyzing mortality associated with congenital heart surgery. The Journal of Thoracic and Cardiovascular Surgery, Elsevier, volume 138, issue 5, pages 1139-1153, November 2009. J. P. Jacobs, M. L. Jacobs, F. G. Lacour-Gayet, K. J. Jenkins, K. Gauvreau, E. Bacha, B. Maruszewski, D. R. Clarke, C. I. Tchervenkov, J. W. Gaynor, T. L. Spray, G. Stellin, S. M. O'Brien, M. J. Elliott, and C. Mavroudis. Stratification of Complexity Improves the Utility and Accuracy of Outcomes Analysis in a Multi-Institutional Congenital Heart Surgery Database: Application of the Risk Adjustment in Congenital Heart Surgery (RACHS-1) and Aristotle Systems in the Society of Thoracic Surgeons (STS) Congenital Heart Surgery Database. Pediatric Cardiology, volume 30, issue 8, pages 1117, September 2009. D. R. Clarke, L. S. Breen, M. L. Jacobs, R. C. Franklin, Z. Tobota, B. Maruszewski, and J. P. Jacobs. Verification of data in congenital cardiac surgery. Cardiology in the Young, Cambridge University Press, volume 18, issue 2, pages 177-187, December 2008. D. R. Clarke, F. Lacour-Gayet, J. P. Jacobs, M. L. Jacobs, B. Maruszewski, C. Pizarro, F. H. Edwards, and C. Mavroudis. The assessment of complexity in congenital cardiac surgery based on objective data. Cardiology in the Young, Cambridge University Press, volume 18, issue 2, pages 169-176, December 2008. M. L. Jacobs, J. P. Jacobs, R. C. Franklin, C. Mavroudis, F. Lacour-Gayet, C. I. Tchervenkov, H. Walters, E. A. Bacha, D. R. Clarke, J. W. Gaynor, and e. al.. Databases for assessing the outcomes of the treatment of patients with congenital and paediatric cardiac disease – the perspective of cardiac surgery. Cardiology in the Young, Cambridge University Press, volume 18, issue 2, pages 101-115, December 2008. M. L. Jacobs, J. P. Jacobs, R. C. Franklin, C. Mavroudis, F. Lacour-Gayet, C. I. Tchervenkov, H. Walters, E. A. Bacha, D. R. Clarke, J. W. Gaynor, and e. al.. Databases for assessing the outcomes of the treatment of patients with congenital and paediatric cardiac disease – the perspective of cardiac surgery. Cardiology in the Young, Cambridge University Press, volume 18, issue 2, 2008. M. L. Jacobs, J. P. Jacobs, R. C. Franklin, C. Mavroudis, F. Lacour-Gayet, C. I. Tchervenkov, H. Walters, E. A. Bacha, D. R. Clarke, J. W. Gaynor, and e. al.. Databases for assessing the outcomes of the treatment of patients with congenital and paediatric cardiac disease – the perspective of cardiac surgery. Cardiology in the Young, Cambridge University Press, volume 18, issue 2, 2008. F. Lacour-Gayet, J. P. Jacobs, D. R. Clarke, B. Maruszewski, M. L. Jacobs, S. M. O'Brien, and C. Mavroudis. Evaluation of the Quality of Care in Congenital Heart Surgery: Contribution of the Aristotle Complexity Score. Advances in Pediatrics, Elsevier, volume 54, issue 1, pages 67-83, 2007. 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. J. P. Jacobs, M. L. Jacobs, C. Mavroudis, B. Maruszewski, C. I. Tchervenkov, F. G. Lacour-Gayet, D. R. Clarke, T. J. Yeh, H. L. I. Walters, H. Kurosawa, G. Stellin, T. Ebels, M. J. Elliott, D. F. Vener, P. Barach, O. J. Benavidez, and E. A. Bacha. What is Operative Morbidity? Defining Complications in a Surgical Registry Database. The Annals of Thoracic Surgery, Elsevier, volume 84, issue 4, pages 1416-1421, October 2007. J. P. Jacobs, C. Mavroudis, M. L. Jacobs, B. Maruszewski, C. I. Tchervenkov, F. G. Lacour-Gayet, D. R. Clarke, J. W. Gaynor, T. L. Spray, H. Kurosawa, G. Stellin, T. Ebels, E. A. Bacha, H. L. Walters, and M. J. Elliott. Nomenclature and Databases --- The Past, the Present, and the Future. Pediatric Cardiology, volume 28, issue 2, pages 105-115, April 2007. J. P. Jacobs, C. Mavroudis, M. L. Jacobs, B. Maruszewski, C. I. Tchervenkov, F. G. Lacour-Gayet, D. R. Clarke, T. J. Yeh, H. L. I. Walters, H. Kurosawa, G. Stellin, T. Ebels, and M. J. Elliott. What is Operative Mortality? Defining Death in a Surgical Registry Database: A Report of the STS Congenital Database Taskforce and the Joint EACTS-STS Congenital Database Committee. The Annals of Thoracic Surgery, Elsevier, volume 81, issue 5, pages 1937-1941, May 2006. J. P. Jacobs, B. Maruszewski, C. I. Tchervenkov, F. G. Lacour-Gayet, M. L. Jacobs, D. R. Clarke, J. W. Gaynor, T. L. Spray, G. Stellin, M. J. Elliott, and e. al.. The current status and future directions of efforts to create a global database for the outcomes of therapy for congenital heart disease. Cardiology in the Young, Cambridge University Press, volume 15, issue 1, pages 190-197, 2005. J. P. Jacobs, M. L. Jacobs, B. Maruszewski, F. G. Lacour-Gayet, D. R. Clarke, C. I. Tchervenkov, J. W. Gaynor, T. L. Spray, G. Stellin, M. J. Elliott, T. Ebels, and C. Mavroudis. Current Status of the European Association for Cardio-Thoracic Surgery and The Society of Thoracic Surgeons Congenital Heart Surgery Database. The Annals of Thoracic Surgery, Elsevier, volume 80, issue 6, pages 2278-2284, December 2005. F. Lacour-Gayet, J. P. Jacobs, D. R. Clarke, J. W. Gaynor, M. L. Jacobs, R. H. Anderson, M. J. Elliott, B. Maruszewski, P. Vouh\'e, and C. Mavroudis. Performance of surgery for congenital heart disease: Shall we wait a generation or look for different statistics? The Journal of Thoracic and Cardiovascular Surgery, Elsevier, volume 130, issue 1, pages 234-235, July 2005. F. Lacour-Gayet and D. R. Clarke. The Aristotle method: a new concept to evaluate quality of care based on complexity. Current Opinion in Pediatrics, volume 17, issue 3, pages 412-417, June 2005. J. P. Jacobs, F. G. Lacour-Gayet, M. L. Jacobs, D. R. Clarke, C. I. Tchervenkov, J. W. Gaynor, T. L. Spray, B. Maruszewski, G. Stellin, J. Gould, R. S. Dokholyan, E. D. Peterson, M. J. Elliott, and C. Mavroudis. Initial Application in The STS Congenital Database of Complexity Adjustment to Evaluate Surgical Case Mix and Results. The Annals of Thoracic Surgery, Elsevier, volume 79, issue 5, pages 1635-1649, May 2005. J. P. Jacobs, C. Mavroudis, M. L. Jacobs, F. G. Lacour-Gayet, C. I. Tchervenkov, J. W. Gaynor, D. R. Clarke, T. L. Spray, B. Maruszewski, G. Stellin, M. J. Elliott, R. S. Dokholyan, and E. D. Peterson. Lessons learned from the data analysis of the second harvest (1998–2001) of the Society of Thoracic Surgeons (STS) Congenital Heart Surgery Database. European Journal of Cardio-Thoracic Surgery, volume 26, issue 1, pages 18-37, 2004. 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.