1. Department of Cell Therapy and Hematology; Hemophilia and Thrombosis Center; San Bortolo Hospital; Vicenza
2. Department of Pediatric Oncology and Hematology; University of Verona; Verona
3. Hemophilia Center; University of Torino; Torino
4. Hemophilia Center; University Florence; Florence
5. Hemophilia Center; San G. Bosco Hospital; Naples
6. Hemophilia Center; University of Bari; Bari
7. Department of Hematology; Transfusion and Hemophilia Center; Castelfranco Veneto; Italy