A. Kansy, B. Maruszewski, J. Jacobs, and P. Maruszewski. CONGENITAL HEART DISEASE IN CHILDREN AND ADULTS. Application of four complexity stratification tools (Aristotle Basic Score, RACHS-1, STAT Mortality Score, and STAT Mortality Categories) to evaluate early congenital heart surgery outcomes over 16 years at a single institution. Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery, volume 10, issue 2, pages 115-119, 2013. A. Kansy, J. P. Jacobs, A. Pastuszko, M. Mirkowicz-Małek, M. Manowska, E. Jezierska, P. Maruszewski, P. Burczyński, and B. Maruszewski. Major Infection After Pediatric Cardiac Surgery: External Validation of Risk Estimation Model. The Annals of Thoracic Surgery, Elsevier, volume 94, issue 6, pages 2091-2095, December 2012. A. Kansy, Z. Tobota, P. Maruszewski, and B. Maruszewski. Analysis of 14,843 Neonatal Congenital Heart Surgical Procedures in the European Association for Cardiothoracic Surgery Congenital Database. The Annals of Thoracic Surgery, Elsevier, volume 89, issue 4, pages 1255-1259, April 2010.