1560-4381 1560-4381 S1560-43812019000100281 Cuba Cuba 00 03 2019 00 03 2019 23 1 281 287

1 2014 36 6 6 799-812 2 2013 17 5 5 40-50 3 2016 22 4 4 4 2014 20 3 3 5 2010 32 3 3 6 2012 7 2011 15 1 1 1-9 8 2011