2072-8174 2072-8174 S2072-81742022000200104 10.18004/rdn2022.dic.02.104.107 Paraguay 00 12 2022 00 12 2022 14 2 104 107 1 2020 7 10 10 ofaa474 2 2020 50 3 3 499-511 3 2020 38 9 9 1715-21 4 2020 220 1-13 5 2020 34 10 10 e541-2