1. Sanquin Research, Center for Clinical Transfusion Research, Plesmanlaan 1A, Leiden, the Netherlands
2. Department of Pediatric Hematology, Amsterdam UMC, University of Amsterdam, Emma Children’s Hospital, Pediatric Hematology, Amsterdam, Netherlands
3. Medical Sciences Division, Dept. Paediatrics, University of Oxford, Oxford, UK
4. Newborn Services, John Radcliffe Hospital, Oxford, UK
5. Department of Clinical Pathology, University Health Network, University of Toronto, Toronto, Canada
6. Women and Newborn’s Clinical Program, Intermountain Healthcare, Salt Lake City, UT, USA
7. Department of Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
8. Department of Neonatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
9. Neonatal Intensive Care Unit, Department of Women’s and Children’s Health, “Di Venere” Hospital of Bari, Bari, Italy
10. Robinson Research Institute, Adelaide Medical School, University of Adelaide, Adelaide, Australia
11. Department of Neonatal Medicine, Women’s and Children’s Hospital, Adelaide, Australia
12. Healthy Mothers, Babies and Children, South Australian Medical and Research Institute, Adelaide, Australia
13. Department of Neonatology, National Maternity Hospital, Dublin, Ireland
14. Transfusion Medicine, National Health Service (NHS) Blood and Transplant, Oxford, UK
15. Department of Haematology, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
16. Radcliffe Department of Medicine, University of Oxford, and Oxford BRC Haematology Theme, Oxford, UK
17. Department of Pediatrics, Division of neonatology, Leiden University Medical Center, Leiden, the Netherlands