0864-2141 0864-2141 S0864-21412022000100001 Peru 00 03 2022 00 03 2022 36 1 1 2020 34 2 2 2 2016 27 4 4 3 2018 31 4 4 4 SJR 2020 5 2019 20 3 3 6 2014 31 3 3 424-30 7 2019 20 ^s2 ^s2 2 2-9 8 2019 20 ^s1 ^s1 1 49-58 9 2018 19 ^s2 ^s2 2 128-34 10 2019 20 ^s1 ^s1 1 175-85