1012-2966 1012-2966 S1012-29662022000200188 10.47993/gmb.v45i2.541 Perú Peru 00 00 2022 00 00 2022 45 2 188 189 1 WHO 2 2020 32 1 1 61-74 3 2019 19 1 1 90-100 4 2010 33 Suppl1 Suppl1 55-68 5 2021 104 3_Suppl 3_Suppl 3-11