1561-3194 1561-3194 S1561-31942019000300418 Cuba 00 06 2019 00 06 2019 23 3 418 426

1 2009 4 12 12 2 2016 20 6 6 3 2018 21 1 1 4 2016 5 2017 6 1 1 6 2012 29-32 7 2019 8 2016 14 3 3 9 2018 22 6 6