2520-9914 2520-9914 S2520-99142023000100034 10.47133/respy26002301art02 Paraguay Paraguay Paraguay Paraguay Paraguay 00 06 2023 00 06 2023 41 1 34 63

1997 79 527-39 2021 2020 1980 70 312-26 2023 2023 2020 132 13-33 2018 159 111-25