1. Central Research Facility Cell Sorting, Hannover Medical School, Hannover, Germany;
2. Haematology and Oncology Department, Great Ormond Street Hospital for Children, London, United Kingdom;
3. Pediatric Specialists of Texas, Methodist Healthcare System, San Antonio, TX;
4. Pediatric Oncology and Hematology, University Hospital Erlangen, Erlangen, Germany;
5. Pediatric Practice Horst Rütschle, Mutterstadt, Germany;
6. Pediatric Oncology, Hematology and Hemostaseology, University Hospital Frankfurt, Frankfurt, Germany;
7. Clinical Genetics Department, Great Ormond Street Hospital for Children, London, United Kingdom;
8. Center for Fanconi Anemia and Inherited Bone Marrow Failure Syndromes, Hacettepe University, Ankara, Turkey;
9. Division of Pediatric Hematology/Oncology, Department of Pediatrics, Technische Universität München, Munich, Germany; and
10. Department of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway