1. Division of Pediatric Oncology, Department of Pediatrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
2. Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
3. Division of Radiotherapy, Clinics Department, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
4. Faculty of Science and Technology, Keio University, Yokohama, Japan.