1. Pediatric Oncology, IOP-GRAACC, Federal University of São Paulo, São Paulo, Brazil
2. Pediatric Oncology, Hospital do Amor, Barretos, Brazil
3. Pediatric Oncology, Hospital Santa Marcelina, TUCCA, São Paulo, Brazil
4. Nursing Department, IOP-GRAACC, Federal University of São Paulo, São Paulo, Brazil
5. Neurosurgery Department, IOP-GRAACC, Federal University of São Paulo, São Paulo, Brazil
6. Pathology Department, IOP-GRAACC, Federal University of São Paulo, São Paulo, Brazil
7. Radiology Department, IOP-GRAACC, Federal University of São Paulo, São Paulo, Brazil
8. Neurosurgery Department, Hospital do Amor, Barretos, Brazil
9. Pathology Department, Hospital do Amor, Barretos, Brazil
10. Radiotherapy Department, IOP-GRAACC, Federal University of São Paulo, São Paulo, Brazil
11. Paediatric Oncology, The Ohio State University, Columbus, OH