1. Department of Biomedical Sciences University of Italian Switzerland Lugano Switzerland
2. Azienda Sanitaria Locale Torino 4 Turin Italy
3. Division of Cardiology Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale Lugano Switzerland
4. Service of Biostatistics & Clinical Trial Center Fondazione IRCCS Policlinico San Matteo Pavia Italy
5. Division of Cardiology, Department of Medicine University of Verona Verona Italy
6. Heart Clinic Zurich, Hirslanden Zurich Switzerland
7. Division of Cardiology Triemli Hospital Zürich and University of Basel Basel Switzerland
8. Division of Cardiovascular Surgery San Raffaele University Hospital Milano Milan Italy
9. Division of Cardiology University Hospital Lausanne Lausanne Switzerland
10. Division of Cardiology Klinik Im Park Zürich Switzerland
11. Division of Cardiology University Hospital Geneve Geneva Switzerland
12. Division of Cardiology University Hospital Bern Bern Switzerland
13. Division of Cardiology, Kantonsspital Luzern Lucerne Switzerland
14. Valve Science Research Center Minneapolis Heart Institute Minneapolis MN USA