1561-3194 1561-3194 S1561-31942020000100123 Cuba Cuba 00 02 2020 00 02 2020 24 1 123 129

1 2017 33 6 6 2 2015 41 12 12 3 2017 37 2 2 4 2014 31 2 2 5 2015 11 3 3 6 2018 7 2015 38 1 1 8 2012 1ra ed 9 2015 34 2 2 10 2015 24