1028-9933 1028-9933 S1028-99332018000300548 Cuba Cuba Cuba 00 06 2018 00 06 2018 97 3 548 556

1 1975 2 2009 3 2011 4 2014 5 2011 6 2013 7 2007 11 4-29 8 2012 9 2016 20 2 2 10 2000 16 6 6 568-73 11 2017 96 1 1 20-8 12 2014 13 2010 14 2016 15 2013 16 2008