1. Department of Clinical and Experimental Medicine; University of Insubria; Varese Italy
2. Department of Heart and Vessels; Thrombosis Centre; AOU-Careggi; Florence Italy
3. Haemostasis and Thrombosis Centre; AO Istituti Ospitalieri; Cremona Italy
4. Division of Hematology; Haemostasis and Thrombosis Center; AOU Ospedali Riuniti Umberto I, G.M. Lancisi, G. Salesi; Ancona Italy
5. Hemostasis and Thrombosis Unit; Hemophilia Center; Azienda Ospedaliera “Pugliese-Ciaccio”; Catanzaro Italy
6. Department of Immunohematology and Transfusion Medicine; Hospital Papa Giovanni XXIII; Bergamo Italy
7. Department of Internal Medicine; Ospedale S. Martino; Genoa Italy
8. Department of Hematology and Transplant Unit; AO San Gerardo; Monza Italy
9. Department of Internal Medicine; Arcispedale Santa Maria Nuova; Reggio Emilia Italy
10. Dipartimento Emergenza-Urgenza e Area Medica e Specialistica; AOU Parma; Parma Italy
11. Department of Hematology; Hemostasis and Thrombosis Center; S. Bortolo Hospital; Vicenza Italy