0484-7903 0484-7903 S0484-79032021000400314 10.35366/100879 Peru 00 12 2021 00 12 2021 44 4 314 314 1 2021 44 66-9 2 2020 46 355-62 3 2013 12 52-6 4 2010 33 160-5 5 2017 5 4-209