1. Angelo Bianchi Bonomi Hemophilia and Thrombosis Center; IRCCS Ca' Granda Maggiore Policlinico Hospital Foundation and University of Milan; Milan Italy
2. Department of Obstetrics and Gynecology; IRCCS Fondazione Cà Granda Policlinico; University of Milan; Milan Italy
3. Laboratory of Haematology; IRCCS Fondazione Cà Granda Policlinico; University of Milan; Milan Italy