1. Department of Medicine and Surgery, Cardiac Surgery Unit, Circolo Hospital University of Insubria Varese Italy
2. Department of Cardiac Surgery Central Clinical Hospital of the Ministry of Interior in Warsaw Warsaw Poland
3. Thoracic Research Centre, Collegium Medicum, Innovative Medical Forum Nicolaus Copernicus University Bydgoszcsz Poland
4. Department of Biotechnology and Sciences of Life University of Insubria Varese Italy
5. Department of Cardiothoracic Surgery, Heart and Vascular Centre Maastricht University Medical Centre Maastricht The Netherlands