2077-2874 2077-2874 S2077-28742020000400257 Cuba Cuba 00 12 2020 00 12 2020 12 4 257 260 1 2002 18 2 2 2 2016 14 5 5 3 2014 13 1 1 4 2012 16 3 3 5 2018 22 5 5