1390-6542 1390-6542 S1390-65422020000400101 10.29019/enfoqueute.v11n4.678 Ecuador Ecuador India 00 12 2020 00 12 2020 11 4 101 115

2020 GadStoDgo 2020 2020 2020 2020 INEC 2010 INEC 2020 2020 2006 2020 2020 2009 OMS 2020 SNGR 2020 2020 2020 2020 2020