1. Pediatric Kidney Transplantation Department of Hospital Samaritano de São Paulo, São Paulo, Brazil.
2. Pediatric Oncology Department of Hospital Samaritano de São Paulo, São Paulo, Brazil.
3. Pediatric Oncology Institute, Grupo de Apoio ao Adolescente com Câncer of Federal University of São Paulo, Universidade Federal de São Paulo, São Paulo, Brazil.
4. Ophthalmology Department of Universidade Federal de São Paulo, São Paulo, Brazil.
5. Pediatric Department of Federal University of São Paulo, São Paulo, Brazil.