Safety and effectiveness of mycophenolate mofetil associated with tacrolimus for liver transplantation immunosuppression: a systematic review and meta-analysis of randomized controlled trials Francisco Tustumi; Antonio Afonso de Miranda; Sérgio Silveira; Felipe Alexandre Fernandes; Miller Barreto de Brito e Silva; Lucas Ernani; Lucas Souto Nacif; Fabricio Ferreira Coelho; Wellington Andraus; Wanderley Marques Bernardo; Paulo Herman; Luiz Augusto Carneiro-D'Albuquerque;