1608-8921 1608-8921 S1608-89212018000300128 Cuba Cuba Cuba 00 12 2018 00 12 2018 20 3 128 135

1 2015 14 1 1 33-42 2 2014 13 5 5 742-50 3 2012 14 1 1 4 2014 27 2 2 82-92 5 2017 13 25 25 6 2012 7 2011 8 2009 11 2 2 9 2014