Ductular reaction and hepatocyte ballooning identify patients with fibrosing cholestatic hepatitits after liver transplantation Laura-Patricia Llovet; Salvatore Sciarrone; Sergio Rodríguez-Tajes; Carla Montironi; Claudia Mescoli; Massimo Rugge; Gonzalo Crespo; Patrizia Burra; Xavier Forns; Alba Diaz; María-Carlota Londoño;