1028-9933 1028-9933 S1028-99332018000100047 Cuba Cuba Cuba República Bolivariana de Venezuela República Bolivariana de Venezuela 00 02 2018 00 02 2018 97 1 47 56

1 2011 15 3 3 356-62 2 2012 48 11 11 3 2011 49 1 1 4 2007 175 1304-45 5 2005 116 744-9 6 2007 44 867-72 7 8 2009 25 3 3 55-6 9 2015 87 4 4 10 2008 34 1 1 11 2007 33 2 2 12 2007 13 2009 6 1 1 243-56 14 2011 9 3 3 141-4 15 2004 140 140 16 2009 69 75-8 17 2009