1727-897X 1727-897X S1727-897X2021000300413 Cuba Cuba 00 06 2021 00 06 2021 19 3 413 420

1 2010 14 1 1 2 2011 15 12 12 3 2006 32 4 4 4 2000 6 2 2 5 2010 6 2013 11 4 4 7 2013 11 5 5 8 2014 12 3 3