2709-7927 2709-7927 S2709-79272021000100134 Cuba Cuba Cuba 00 03 2021 00 03 2021 15 1 134 140

1 2016 2 2010 3 2015 45-53 4 2012 5 2014 6 2007 7 2015 8 2016 37 1 1 9 2016 13 2 2