0375-0760 0375-0760 S0375-07602022000200017 Cuba Cuba 00 08 2022 00 08 2022 74 2

1 2020 9 3 3 240 2 World Health Organization 2021 3 2021 4 2021 5 2020 72 2 2 6 2003 8 2 2 7 2008 18 5 5