1. General Medicine Unit & Thrombotic, and Haemorrhagic Disorders Unit, Department of Internal Medicine, University Hospital of Padua, 35128 Padua, Italy
2. AFO Medicine, PO Santa Maria delle Grazie Hospital, ASL Napoli 2 Nord, 80078 Napoli, Italy
3. Department of Medicine and Ageing Sciences, “G D’Annunzio” University, 66100 Chieti, Italy
4. Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
5. Unit of Vascular and Endovascular Surgery, San Martino Hospital, 32100 Belluno, Italy
6. Arianna Foundation on Anticoagulation, 40100 Bologna, Italy