0864-0289 0864-0289 S0864-02892021000100003 Cuba 00 03 2021 00 03 2021 37 1 1 2015 31 1 1 53-8 2 2014 30 3 3 192-5 3 2018 23 4 4 500-5 4 2015 6 1 1 5 2016 32 2 2 6 2019 35 4 4 7 2015 31 1 1 59-64 8 2019 8 S1 S1 S170