1 Department of Pediatric Cardiology, University Children's Hospital, Jagiellonian University Medical College, Kraków, Poland. sebastian.goreczny@uj.edu.pl.
2 Department of Pediatric Cardiac Surgery, University Children's Hospital, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland.
3 Department of Pediatric Pulmonology, Allergology and Dermatology University Children's Hospital, Jagiellonian University Medical College, Kraków, Poland.
4 Department of Pediatric Cardiology, University Children's Hospital, Jagiellonian University Medical College, Kraków, Poland.