0258-5936 0258-5936 S0258-59362020000300001 Cuba 00 09 2020 00 09 2020 41 3

1 2016 145 2 2018 3 2017 94 4 2018 5 2015 1 1 1 1-4 6 2018 39 3 3 91 7 2016 4 5 5 417-24 8 2015 9 2007 1ra 10 2009 11 1999 91 12 2016 32 1 1 12-9 13 2018 45 2 2 21-8 14 2015 6 4 4 763-78 15 ONEI 2017 16 2017 64