2604-1227 2604-1227 S2604-12272021000500229 10.24875/rmo.m21000184 Perú 00 10 2021 00 10 2021 95 5 229 230 1 2021 95 71-5 2 2011 5 577-81 3 2020 10 809 4 2014 2014 717835