Development of the analytical method for the quantification of 3-nitrotirosin and 3-chlorothyrosin in human plasma as potential biomarkers to evaluate minimal liver encephalopathy (MHE) A. Villaseñor Todd; J.A. Hernández-Hernández; R.C. López-Sanchez; F.J. Bosques-Padilla; C.A. Cortez-Hernandez; E. Lopez Soriano;