1 Department of Pediatric Cardiac Surgery, Poznan University of Medical Sciences, Poznań, Poland. kardiochirurgia@skp.ump.edu.pl.
2 Students' Scientific Group of Pediatric Cardiac Surgery, Department of Cardiothoracic Surgery, Poznan University of Medical Sciences, Poznań, Poland.
3 Department of Pediatric Cardiac Surgery, Poznan University of Medical Sciences, Poznań, Poland.
4 Department of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, Poznań, Poland.