1561-3003 1561-3003 S1561-30032020000100018 Cuba 00 00 2020 00 00 2020 57

1 2020 94 91-5 2 World Health Organization 2020 3 World Health Organization 2020 4 World Health Organization 2020 5 2020 10 199-208 6 Cuba 2020 7 2020 92 568-76 8 2020 20 269-70 9 2020 581 22-6 10 2020 368 489-93 11 2020 12 2020 98 180-6