1. Department of General and Transplantation Surgery, The Medical University of Warsaw, Warsaw, Poland;
2. Department of Transplant Medicine, Nephrology and Internal Medicine, The Medical University of Warsaw, Warsaw, Poland;
3. Department of Immunology, Transplantology and Internal Medicine, The Medical University of Warsaw, Warsaw, Poland;
4. Department of Anaesthesiology and Intensive Care, The Medical University of Warsaw, Warsaw, Poland