1727-897X 1727-897X S1727-897X2020000100082 Cuba 00 02 2020 00 02 2020 18 1 82 87

1 2011 5 9 9 13-9 2 2006 30 5 5 457-60 3 2013 30 1 1 73-82 4 2007 XVI 11-4 5 2011 9 4 4 35-8 6 2015 93 1 1 4-11