polymorphisms in genes coding for drug-metabolizing enzymes and DNA repair enzymes and response to treatment of acute lymphoblastic leukemia in brazilian children - Scrideli, Carlos Alberto; Andrade, Vanessa da Silva Silveira; Queiroz, Rosane Gomes de Paula; Tone, Luiz Gonzaga (Annual Conference of the International Society of Paediatric Oncology (SIOP, 2006)