1. Department of Pediatrics; Emory University School of Medicine; Atlanta Georgia
2. Children's Healthcare of Atlanta; Atlanta Georgia
3. Center for Transfusion and Cellular Therapies, Department of Pathology and Laboratory Medicine; Emory University; Atlanta Georgia
4. Biostatistics and Bioinformatics; Emory University Rollins School of Public Health; Atlanta Georgia
5. Department of Pediatrics, Morsani College of Medicine; University of South Florida; Tampa Florida
6. Division of Newborn Medicine; Boston Children's Hospital and Harvard Medical School; Boston Massachusetts
7. Unidad de Hematología y Oncología Médica; Hospital Universitario Morales-Meseguer, Centro de Hemodonacion, IMIB-Arrixaca, CIBERER, UCAM; Murcia Spain