2341-4545 2341-4545 S2341-45452023000200080 10.1159/000520273 Portugal Portugal Portugal Portugal 00 04 2023 00 04 2023 30 2 80 83 1 2015 63 3 3 743-52 2 2018 69 2 2 406-60 3 2017 65 1 1 310-35 4 Variceal Bleeding Study Group 2016 63 6 6 1957-67 5 2019 39 2 2 290-8