1. Haemophilia Centre; University Hospital of Padua; Padova Italy
2. Cellular Biotechnology and Haematology Department; Umberto I University Hospital; Roma Italy
3. Haemophilia Centre; S. Matteo Hospital; Pavia Italy
4. Centre of Haemorrhagic and Thrombotic Diseases; University of Palermo; Palermo Italy
5. Haemophilia and Thrombosis Centre; S. Giovanni Bosco Hospital; Napoli Italy
6. Centre of Coagulation Diseases; Hospital of Macerata; Macerata Italy
7. Haematology and Transfusion Medicine Department; Luigi Sacco Hospital; Milano Italy
8. Center of Coagulation Diseases; SS Annunziata Hospital; Sassari Italy
9. Haematology Department; VE Ferrarotto and S. Bambino University Hospital; Catania Italy
10. Transfusion Medicine and Immune-haematology Department; Giovanni XXIII Hospital; Bergamo Italy
11. Medicine Department; Humanitas Clinical Institute; Rozzano (Milano) Italy
12. Centre of Haemorrhagic and Thrombotic Diseases; Pugliese-Ciaccio Hospital; Catanzaro Italy