1. Department of Thoracic Surgery and Transplantation, Pomeranian Medical University in Szczecin, Alfreda Sokołowskiego 11, 70-891 Szczecin, Poland
2. Department of Thoracic Surgery, Attikon University Hospital, National and Kapodistrian University of Athens, Rimini 1, 12462 Athens, Greece
3. Department of Pathology, Faculty of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-561 Olsztyn, Poland
4. Department of Internal Medicine and Hypertension with Subdepartment of Cardiology, Independent Public Provincial Hospital in Szczecin, Alfreda Sokołowskiego 11, 70-891 Szczecin, Poland