1029-3019 1029-3019 S1029-30192021000100066 Cuba Cuba Cuba Cuba 00 02 2021 00 02 2021 25 1 66 80

1 2020 17 6 6 2032 2 2020 39 5 5 355-7 3 2020 4 2020 7 11 5 2020 286 6 2020 24 4 4 7 2013 8 2002 30 24-34 9 2013 39 1 1 10 2018 32 1 1 2-6 11 2020 395 10227 10227 912-20 12 National Health Commission of China 2020 13 2020