1 Italian National Blood Centre, National Institute of Health, Rome, Italy.
2 Italian National Blood Centre, National Institute of Health, Rome, Italy IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy.
3 Italian National Blood Centre, National Institute of Health, Rome, Italy Faculty of Medicine and Psychology, "Sapienza" University of Rome, Rome, Italy.
4 Piedmont Regional Blood Centre at Transfusion Medicine and Haematology Unit, Ivrea Hospital, Ivrea, Italy.
5 Immunohaematology, Medicine and Clinical Pathology Units, "San Giovanni Calibita" Fatebenefratelli Hospital, AFAR, Rome, Italy.