1. Arianna Anticoagulazione Foundation Bologna Italy
2. Haemostasis and Thrombosis Center, Department of Laboratory Medicine AO Istituti Ospitalieri Cremona Italy
3. Angelo Bianchi Bonomi Hemophilia and Thrombosis Center IRCCS Cà Granda Maggiore Hospital Foundation Milan Italy
4. Department of Angiology and Blood Coagulation S. Orsola‐Malpighi University Hospital Bologna Italy