1 Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Haemophilia and Thrombosis Center and Fondazione Luigi Villa, Milan, Italy.
2 Centre for Haemorrhagic and Thrombotic Diseases, "Pugliese-Ciaccio" Hospital, Catanzaro, Italy.
3 Department of Laboratory Medicine, Haemostasis and Thrombosis Centre, AO "Istituti Ospitalieri", Cremona, Italy.
4 Thrombosis and Haemostasis Unit, "Giannina Gaslini" Children's Hospital, Genoa, Italy.
5 Department of Experimental Medicine and Surgery, University of Roma "Tor Vergata", Rome, Italy.
6 Unit of Clinical Pathology, "SS Annunziata" University Hospital, ASL Lanciano-Vasto-Chieti, Chieti, Italy.
7 Section of Clinical Biochemistry, University of Verona, Verona, Italy.
8 Research Centre on Thromboembolic Diseases and Antithrombotic Therapies, Department of Clinical and Experimental Medicine, University of Insubria, Varese, Italy.