1682-0037 1682-0037 S1682-00372021000300002 Cuba 00 12 2021 00 12 2021 22 3 1 2020 75 23 23 2950-73 2 2020 8 4 4 526-34 3 2020 18 6 6 1421-4 4 2020 5 7 7 831-40 5 2020 116 14 14 2177-84 6 2020 18-25