1684-1859 1684-1859 S1684-18592022000100017 Peru Peru 00 06 2022 00 06 2022 14 1 1 2019 36 1 1 26-36 2 2018 29 4 4 1-14 3 2009 26 2 2 161-7 4 2015 32 2 2 283-8 5 2015 89 3 3 329-38