1683-9803 1683-9803 S1683-98032022000200065 10.31698/ped.49022022001 Paraguay 00 08 2022 00 08 2022 49 2 65 66 1 CEPAL 2014 2 Cai Wet al 2015 386 10006 10006 1861-914 3 2010 24 ^s1 ^s1 1 78-84 4 2020 34 34 123-13 5 2020 6 2020 10 77-82 7 2022 8 2021 Granma (CU)