Valera, E. T., C. A. Scrideli, R. G. de P. Queiroz, B. M. O. Mori, and L. G. Tone. “Multiple Drug Resistance Protein (MDR-1), Multidrug Resistance Related Protein (MRP) and Lung Resistance Protein (LRP) Gene Expression in Childhood Acute Lymphoblastic Leukemia”. São Paulo Medical Journal, vol. 122, no. 4, July 2004, pp. 166-71, https://periodicosapm.emnuvens.com.br/spmj/article/view/2520.