1. Neonatal Intensive Care Unit, “Agios Panteleimon” General Hospital of Nikea, Piraeus, Greece
2. Department of Biomedical Sciences, Humanitas University, Milan, Italy
3. Humanitas Clinical and Research Center, IRCCS, Milan, Italy
4. Laboratory of Haematology and Blood Bank Unit, “Attiko” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
5. Neonatal Intensive Care Unit, University Hospital of Larissa, Larissa, Greece
6. Neonatal Department, Aretaeio Hospital, National and Kapodistrian University of Athens, Athens, Greece
7. Department of Biomedical Science, Laboratory of Reliability and Quality Control in Laboratory Hematology, School of Health and Caring Science, University of West Attica, Egaleo, Greece
8. Department of Blood Transfusion, Aretaieion Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
9. Intensive Care Unit, Excela Health Westmoreland Hospital, Greensburg, Pennsylvania, United States