0138-6557 0138-6557 S0138-65572021000100032 Cuba 00 03 2021 00 03 2021 50 1 1 2020 49 2 2 434-7 2 Ministerio de Salud Pública 2020 3 2015 14 6 6 4 2020 92 401-2 5 2020 26 1 1 6 2018 7 3 3 7 2020 180 6 6 819-20 8 2020 9 2020 10 2020