1. Faculty of Medicine and Dentistry Pomeranian Medical University Szczecin Poland
2. Faculty of Medicine and Health Sciences Andrzej Frycz Modrzewski Krakow University Krakow Poland
3. Department of Cardiovascular Surgery and Transplantation John Paul II Hospital Krakow Poland
4. Center for Research and Innovative Technology John Paul II Hospital Krakow Poland
5. Institute of Cardiology Jagiellonian University Medical College Krakow Poland
6. KCRI Krakow Poland