1. Clinical Medicine Postgraduate Program, College of Medicine, Rio de Janeiro Federal University (UFRJ), Rio de Janeiro, Brazil
2. Cytometry Service, Institute of Pediatrics and Puericulture Martagão Gesteira (IPPMG), UFRJ, Rio de Janeiro, Brazil
3. Departament of Medicine and Cytometry Service, Cancer Research Center (IBMCC, USAL-CSIC), Institute for Biomedical Research of Salamanca (IBSAL), University of Salamanca (USAL), Salamanca, Spain
4. Cytogenetics Service, IPPMG-UFRJ and Polo Xerém-UFRJ, Rio de Janeiro, Brazil
5. Cytogenetics Department, Bone Marrow Transplantation Unit and Oncology Post Graduation Program, National Cancer Institute (INCa), Rio de Janeiro, Brazil
6. Department of Pediatric Hematology/Oncology, Medical University of Silesia, Zabrze, Poland
7. Service of Pediatric Hematology, Federal Lagoa Hospital (HFL), Rio de Janeiro, Brazil
8. Service of Pediatric Hematology, São José do Avaí Hospital (HSJA), Itaperuna, Rio de Janeiro, Brazil
9. Service of Pediatric Hematology/Oncology, Servidores do Estado Federal Hospital (HSE), Rio de Janeiro, Brazil
10. Service of Pediatric Hematology, Children's Cancer Hospital of Barretos, Barretos, São Paulo, Brazil