CLINICAL AND EPIDEMIOLOGICAL PROFILE OF PATIENTS WITH ACUTE PRESENTATION LEUKEMIA IN THE PEDIATRIC POPULATION CONFIRMED BY FLOW CYTOMETRY FROM A HOSPITAL IN MEDELLIN, COLOMBIA, 2012-2017 G. Coronado-Magalhães; L.M. Martínez-Sanchez; G.S. Mejía; L. López; L.F. Álvarez; C. Ruiz; L.I. Jaramillo; J.D. Villegas; F. Hernández; R.A. Cardona;