STUDY OF CONCORDANCE BETWEEN THE DEGREE OF LIVER FIBROSIS ESTIMATED THROUGH APRI AND FIB-4 BIOCHEMICAL SCORES, AND ELASTORESONANCE IN PATIENTS WITH AUTOIMMUNE HEPATITIS P.D. Flores Rangel; N.A. Bolaños Gómez; L.A. Murrieta González; A.B. Craviotto Rivera; E. Cerda Reyes;