1727-897X 1727-897X S1727-897X2020000100137 Cuba 00 02 2020 00 02 2020 18 1 137 142

1 2007 2 2012 17ma 1708-15 3 2002 XXII 6 6 570-3 4 1997 22 3 3 8 5 2010 6 2011 86 2 2 3 7 2017 377 862-72 8 1998 XVIII 2 2 165-7 9 2006 36 1 1 38-41