0026-1742 0026-1742 S0026-17422020000300023 10.22201/fm.24484865e.2019.63.3.04 Cuba Cuba 00 06 2020 00 06 2020 63 3 23 25

1 1982 49 549-51 2 2017 25 1-6 3 2015 5 1 1 40-6 4 2016 3 3 155-8 5 2016 374 26 26 2575-84 6 2018 18 57-9 7 2015 54 2405-8 8 2018 43 230-2