2218-3620 2218-3620 S2218-36202021000300491 Ecuador Ecuador 00 06 2021 00 06 2021 13 3 491 496

2019 4037-43 2018 12 3 3 181-98 2014 66 2 2 23-7 2019 52 25 25 125-30 2019 584-9 2019 18 1 1 155-68 2019 895 41-55 2015 14 4 4 527-36 2017 23 23 25-48 2007 2017 4 53 53 201-24 2019 Honolulu, USA Organización Mundial de la Salud. [OMS] 2020 2018 49 114-27 2019 19 19 328-40 2015 Shenzhen, China 2016 15 4 4 589-607 2020 1 4 4 14-25