0212-1611 0212-1611 S0212-16112021000700027 10.20960/nh.03751 Perú 00 12 2021 00 12 2021 38 6 1310 1310 1 2021 38 4 4 877-8 2 2016 3 3 2010 9 6 6 476-87 4 2020 5 2021 38 4 4 821-6 6 2020 5 7 2021 56 2 2 175-98 8 2021 74 7 7 641-2 9 2021 39 1 1 10 2021