1. Department of Transfusion Medicine and Haematology; Carlo Poma Hospital; Mantova Italy
2. Regional Reference Centre for Coagulation Disorders; Federico II University Hospital; Naples Italy
3. Haemophilia and Thrombosis Centre; San Giovanni Bosco Hospital; Naples Italy
4. Haemophilia Centre; Department of Cardiologic, Thoracic and Vascular Sciences; University of Padua Medical School; Padua Italy
5. Agency for Haemophilia; Department of Emergency and Reception; Azienda Ospedaliero-Universitaria Careggi; Firenze Italy