1726-6718 1726-6718 S1726-67182020000200001 Cuba 00 08 2020 00 08 2020 19 2 1 2017 30 1 1 2 2011 34 2 2 103-10 3 2014 28 2 2 307-12 4 Cordoví de Armas L 2010 9 1 1 3-13 5 2014 82 4 4 142-7