1727-897X 1727-897X S1727-897X2021000500814 Cuba Cuba Cuba Cuba Cuba 00 10 2021 00 10 2021 19 5 814 826

1 2003 2 1990 126 481-6 3 2006 30 1 1 51-63 4 2010 16 2 2 124-32 5 2014 4 1 1 6 2006 32 1 1 7 2015 16 3 3 55-63 8 2014 11 223-40 9 2009 24 ^s2 ^s2 2 23-8