1. Thrombotic and Haemorrhagic Diseases Unit, Department of Medicine-DIMED, Regional Centre for Haemophilia and Thrombophilia Centre; Padua University Hospital; Padua Italy
2. Centre for Haemorrhagic and Thrombotic Diseases; Udine General and University Hospital; Udine Italy
3. Transfusion Medicine Department; Trieste University Hospital; Trieste Italy