To evaluate and compare the profile of expression of genes related to drug resistance in brain tumors and to analyze the impact of the increased expression of these genes on overall survival.
Discipline of Pediatric Oncology, Department of Pediatrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, 3900. Bairro Monte Alegre, Ribeirão Preto, SP CEP 14048-900, Brazil. etvalera@hcrp.fmrp.usp.br