1. Departments of Cardiac Surgery and Transplantology, Poznan University of Medical Sciences, ul. Dluga 1/2, 61-848 Poznan, Poland
2. Histology and Embryology, Poznan University of Medical Sciences, ul. Dluga 1/2, 61-848 Poznan, Poland
3. Pediatric Cardiology and Nephrology, Poznan University of Medical Sciences, ul. Dluga 1/2, 61-848 Poznan, Poland
4. Anesthesiology and Intensive Therapy, Poznan University of Medical Sciences, ul. Dluga 1/2, 61-848 Poznan, Poland