1727-897X 1727-897X S1727-897X2020000300469 Cuba 00 06 2020 00 06 2020 18 3 469 477

1 2015 75 3 3 10 2 2019 13 2 2 14 3 2018 61 4 4 8 4 2007 33 2 2 12 5 2003 17 1 1 28 6 2015 59 4 4 14 7 2013 57 1 1 64-72 8 2012 12 4 4 12 9 2015 20 4 4 10 10 2016 53 1 1 10