1. Department of Internal Medicine University of Pavia Fondazione IRCCS Policlinico San Matteo Pavia Italy
2. SIMT ASST Bergamo Ovest Treviglio Italy
3. IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano Foundation Milan Italy
4. Service of Biometry and Clinical Epidemiology University of Pavia Fondazione IRCCS Policlinico San Matteo Pavia Italy
5. Research Center on Thromboembolic Disorders and Antithrombotic Therapies University of Insubria Como Italy