1 Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy.
2 CEINGE Biotecnologie Avanzate, Napoli, Italy.
3 UOS Fisiopatologia delle Anemie, UO Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore, Policlinico Milano, Italy.
4 Department of Neonatology, Birmingham Women's and Children's Hospital, Birmingham, United Kingdom.
5 Neonatal Intensive Care Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
6 King's College Hospital, King's College London, United Kingdom.
7 Central Diagnostic Laboratory, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
8 First Department of Pediatrics, University of Athens, Greece.
9 Departments of Pediatrics, Pathology, and Genetics, Yale University, New Haven, Connecticut, USA.
10 Department of Haematology, Oxford University Hospitals, NHS Foundation Trust, Oxford, United Kingdom.
11 NIHR BRC Blood Theme, Oxford, United Kingdom.
12 Department of Haematology, Oxford, United Kingdom.
13 Division of Hematology and Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
14 Department of Pediatric Oncology, Hematology and Immunology, University of Heidelberg, Hopp-Children's Cancer Research Center (KiTZ), Heidelberg, Germany.
15 Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy.
16 Department of Laboratory Medicine (DAIMedLab), UOC Medical Genetics, 'Federico II' University Hospital, Naples, Italy.
17 Pediatrics Department, Necker Hospital, Paris, France.
18 Centro della Microcitemia e Anemie Congenite, Ospedale Galliera, Genova, Italy.
19 Department of Clinical Genetics/LDGA, Leiden University Medical Center, Leiden, The Netherlands.
20 Hematology, University of Utah & Huntsman Cancer Center, Salt Lake City, Utah, USA.