1727-897X 1727-897X S1727-897X2021000400706 Cuba Cuba Cuba Cuba 00 08 2021 00 08 2021 19 4 706 711

1 Van der Merve F.Kruger T.Oehninger S.Lombard C 2005 59 2 2 86-91 2 2017 18 9 9 68 3 2010 138 12 12 1510-6 4 2020 13 1 1 278 5 2018 9 6 6 833-48 6 World Health Organization 2010 5 7 2017 15 5 5 8 2013 39 4 4 368-82