1727-897X 1727-897X S1727-897X2021000100182 Cuba 00 02 2021 00 02 2021 19 1 182 187

1 2020 2 2020 3 2020 25 9 9 12 4 2013 31 ^sSuppl 1 ^sSuppl 1 Suppl 1 30 5 2015 18 4 4 12 6 2011 7 2018 8 2014 9 2020 10 2009 11 2019