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EVALUATION OF RESPONSE TO SECOND LINE THERAPY IN PATIENTS WITH PRIMARY BILIARY CHOLANGITIS AND INADEQUATE RESPONSE TO UDCA: A PILOT STUDY OF LIVER BIOPSIES FOLLOW UP Alejandra Villamil; Daniela de la Viña; Eduardo Mullen; Ignacio Lucero; Juan Carlos Bandi;

OP-8 SECOND LINE THERAPY IN PATIENTS WITH PRIMARY BILIARY CHOLANGITIS AND INADECUATE RESPONSE: ARE WE CHOOSING THE RIGHT TARGET POPULATION FOR CLINICALS TRIALS? Daniela De La Viña; Natalia Sobenko; Eduardo Mullen; Ignacio Lucero; Juan Carlos Bandi; Maria Alejandra Villamil;