Propranolol versus carvedilol for the primary prophylaxis of variceal bleeding: a proposed multicenter, randomized, double-blind trial. Principles and Practice of Clinical Research, [S. l.], v. 3, n. 1, 2017. Disponível em: https://journal.ppcr.org/index.php/ppcrjournal/article/view/52.. Acesso em: 10 apr. 2025.