1561-3194 1561-3194 S1561-31942019000400492 Cuba Cuba 00 08 2019 00 08 2019 23 4 492 500

1 2017 31 3 3 2 2014 3ra 3 2016 22 1 1 4 2016 5 2014 72 6 2018 32 2 2 7 2016 30 3 3 8 2014 36 6 6 9 2014 13 1 1 10 2014 13 1 1 11 2018 22 4 4