1 Immunohaematology and Transfusion Medicine Unit, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
2 Transfusion Medicine Unit, Monopoli, Italy.
3 University Department of Paediatrics and Childhood Neuropsychiatry, Sapienza University of Rome, Rome, Italy.
4 Neonatology and Neonatal Intensive Care, Di Venere Hospital, Bari, Italy.
5 Department of Transfusion Medicine and Haematology, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.
6 Neonatology and Neonatal Intensive Care, Spedali Civili, Brescia, Italy.
7 Neonatology, Pathology and Neonatal Intensive Care Unit, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
8 Department of Paediatrics, Sacred Heart Catholic University, Rome, Italy.
9 Immunohaematology and Transfusion Centre, "G. Gaslini" Institute, Genoa, Italy.
10 Transfusion Medicine and Immunohaematology Department of Bologna Metropolitan Area, Bologna, Italy, as Italian Society of Transfusion Medicine and Immunohaematology (SIMTI) and Italian Society of Neonatology (SIN) working group.