1 Clinical Department of Cardiac Surgery, Central Clinical Hospital of Ministry of Interior, Warsaw, Poland; Cardiothoracic Research Centre, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.
2 Cardio-Thoracic Surgery Department, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, The Netherlands; Department for the Treatment and Study of Cardiothoracic Diseases and Cardiothoracic Transplantation and Department of Anesthesia and Intensive Care, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy.
3 Cardio-Thoracic Surgery Department, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, The Netherlands.
4 Department of Cardiac Surgery, Dr Antoni Jurasz Memorial University Hospital, Bydgoszcz, Poland.
5 Division of Cardiac Surgery, The Boston University School of Medicine, Boston, Mass.
6 Clinical Department of Cardiac Surgery, Central Clinical Hospital of Ministry of Interior, Warsaw, Poland; Faculty of Health Science and Physical Education, Pulaski University of Technology and Humanities, Radom, Poland.