1. Department of Pediatrics/Willem-Alexander Children's Hospital, Division of Immunology, Haematology and Stem Cell Transplantation; Leiden University Medical Center; Leiden; The Netherlands
2. Experimental and Clinical Haematology Unit, G. Gaslini Children's Hospital; Genova; Italy
3. HSCT Unit, Hospital St. Louis; Paris; France
4. Immunology HLA Unit, Hospital St. Louis; Paris; France
5. Hematology and Fanconi Anemia Unit, Hospital St. Louis; Paris; France
6. Servizio Epidemiologia Clinica e Biostatistica, G. Gaslini Children's Hospital; Genova; Italy
7. Laboratorio Diagnosi Pre e Postnatale Malattie Metaboliche; G. Gaslini Children's Hospital; Genova; Italy
8. Centre of Excellence for Biomedical Research (CEBR), University of Genova; Genova; Italy
9. Oncology Laboratory; G. Gaslini Children's Hospital; Genova; Italy