1561-3194 1561-3194 S1561-31942019000200259 Cuba Cuba Cuba 00 04 2019 00 04 2019 23 2 259 268

1 2013 5ta 38-42 2 2009 16-24 3 2014 65 4 2013 51 8^s3 8^s3 3 5 201 3 1 1 6 2009 23-31 7 2014 6 1 1 8 2013 24 1 1 9 2014 25 4 4 10 2015 26 1 1 11 2015 4 15 15 12 2015 29 1 1