1692-7273 1692-7273 S1692-72732021000300001 Colombia 00 12 2021 00 12 2021 19 3 1 3 1 2017 21 2 2 2 2018 67 18 18 509-14 3 2021 18 8 8 40-1 4 2020 54 5 2020 7 2 2 31-2 6 2020 382 8 8 734-43 7 2018 319 16 16 1734 8 2021 22 2 2 236-47