0864-2125 0864-2125 S0864-21252020000400018 Cuba Ecuador 00 12 2020 00 12 2020 36 4 1 2018 34 1 1 2 1987 3 4 4 43-50 3 1993 9 2 2 150-5 4 2004 20 5-6 5-6 5 2010 8 5 5 6 2010 8 5 5 7 2011 27 2 2 232-44 8 2012 28 4 4 566-8 9 2015 31 2 2