1726-8958 1726-8958 S1726-89582022000200066 Bolivia 00 00 2022 00 00 2022 28 2 66 72 1 2021 84 1 1 1-2 2 2015 32 1 1 3 2010 4 2014 32 1 1 65-74 5 A. P. Association 2013 6 World health Organization 2020 7 2020 8 2020 34 3 3 553-60 9 2020 10 2014 11 2007 10 12 2021 70 70 110-20 13 1981 2 99-113 14 1981 2 99-113