Poor Prognosis Biomolecular Factors Are Highly Frequent in Childhood Acute Leukemias From Oaxaca, Mexico oleh Gerardo Juárez-Avendaño MSc, Nuria Citlalli Luna-Silva MD, Euler Chargoy-Vivaldo MD, Laura Alicia Juárez-Martínez MD, Mayra Noemí Martínez-Rangel BS, Noemí Zárate-Ortiz BS, Edith Martínez-Valencia BS, Briceida López-Martínez MD, Rosana Pelayo PhD, Juan Carlos Balandrán PhD