1727-897X 1727-897X S1727-897X2021000500722 Cuba Cuba 00 10 2021 00 10 2021 19 5 722 735

1 2011 2 1984 67 1-9 3 2017 15 5 5 4 2018 5 2017 21 12 12 6 2015 19 12 12 7 2014 12 6 6 8 2016 14 2 2 9 2018