Minimal residual disease in cerebrospinal fluid at diagnosis: a more intensive treatment protocol was able to eliminate the adverse prognosis in children with acute lymphoblastic leukemia - Biojone, Estefânia; Queiroz, Rosane Gomes de Paula; Valera, Elvis Terci; Odashima, Newton Satoro; Takayanagui, Osvaldo Massaiti; Viana, Marcos Borato; Tone, Luiz Gonzaga; Scrideli, Carlos Alberto (Leukemia & Lymphoma, 2012)