1727-897X 1727-897X S1727-897X2020000300352 Cuba Cuba 00 06 2020 00 06 2020 18 3 352 367

1 2012 2 2011 341-52 3 2018 145-59 4 2018 5 2009 7 5 5 8 6 2019 17 6 6 21 7 2008 8 2012 9 2019 10 2019