1390-6542 1390-6542 S1390-65422021000200001 10.29019/enfoqueute.727 Ecuador Ecuador 00 06 2021 00 06 2021 12 2 1 18

2020 2010 Agency for Toxic Substances and Disease Registry 2020 2020 2018 2020 2019 2015 2021 2013 2013 2019 2014 2020 2020 2017 2020 2017 2011 2020 2019 2019 Instituto Nacional de Estadísticas y Censos 2015 2018 2019 2020 2019 2012 2016 2019 Organización Mundial de la Salud 2019 2017 2015 2009 2008 2005 2007 2000 2019 2019 2017 2017 2017 2013 2018