1990-8644 1990-8644 S1990-86442021000600199 Ecuador 00 12 2021 00 12 2021 17 83 199 204

2017 12 3 3 2-9 2015 47 8 8 532-43 2021 17 1-6 2019 8 4 4 43-52 2021 15 17-22 2021 4 1 1 107 2017 33 2 2 242-51 2018 44 398-421 2019 12 3 3 2021 12 2 2 117-29 2021 Artemisa, Cuba 2020 12 2 2 274-399 2020 39 4 4 2020 13