2072-8174 2072-8174 S2072-81742022000200083 10.18004/rdn2022.dic.02.083.087 Paraguay Paraguay 00 12 2022 00 12 2022 14 2 83 87

1 2019 38 2 2 55-9 2 2020 202 2 2 184-92 3 2007 19 2 2 88-90 4 2018 116 3 3 192-7 5 2013 48 2 2 277-81 6 2020 68 2 2 141-7