1870-7203 1870-7203 S1870-72032021000200221 10.35366/100446 México México México México México México México México México 00 06 2021 00 06 2021 19 2 221 228

1 2020 395 10223 10223 497-506 2 2020 382 18 18 1708-20 3 World Health Organization 2020 4 2020 395 10229 10229 1054-62 5 2020 16 10 10 1753-66 6 2020 5 7 7 831-40 7 2020 92 10 10 1902-14 8 2020 9 2020 31 7 7 1409-15 10 2020 24 4 4 534-40 11 2020 98 1 1 12-6 12 2020 62 3 3 341-7 13 2020 14 2020 52 7 7 345-53 15 2020 97 5 5 829-38 16 2020 31 7 7 1387-97 17 2012 22 1 1 149-56 18 2013 9 5 5 255-65 19 2004 15 7 7 1883-8 20 2020 97 5 5 824-8 21 2020 98 1 1 27-34 22 2020 15 8 8 1139-45 23 2020 15 5 5 717-9 24 2020 51 5 5 337-42 25 2020 98 1 1 20-6 26 2020 52 6 6 1193-4 27 2020 17 5 5 259-60 28 2020 33 5 5 875-7