1. University of Modena and Reggio Emilia; Policlinico di Modena; Modena Italy
2. University of Bologna; S. Orsola-Malpighi University Hospital; Bologna Italy
3. University Hospital; St. Etienne France
4. University General Hospital; Valencia Spain
5. San Filippo Neri Hospital; Rome Italy
6. University Hospital; Bari Italy
7. Chioggia ULSS 14; Chioggia Italy
8. Tours University Hospital; Tours France
9. Medtronic EMEA Regional Clinical Center; Rome Italy
10. University Hospital of Geneva; Geneva Switzerland