1561-3194 1561-3194 S1561-31942019000600792 Cuba Cuba 00 12 2019 00 12 2019 23 6 792 798

1 2017 21 5 5 2 2018 3 2015 4 2017 5 2014 88 6 6 6 2018 22 2 2 7 2014 18 2 2 8 2014 13 33 33 9 2015 5 3 3 10 2019 23 1 1 11 2017 19 6 6 12 2017 13 2017 14 2016 1 2 2