1817-5996 1817-5996 S1817-59962023000100001 Perú 00 03 2023 00 03 2023 25 1 1 2018 3a 2 2015 60 4 4 168-75 3 2016 45 5-31 4 2018 28 1 1 12-21 5 2019 8 6 6 1-6 6 2020 27 1 1 21-31 7 2019