2550-6722 2550-6722 S2550-67222019000200101 Ecuador Ecuador Ecuador Ecuador 00 08 2019 00 08 2019 8 101 115

2010 2005 11 1-2 1-2 333-8 2010 17-39 2017 1984 2008 17 1 1 4-12 2004 2011 2015 2015 2014 2011 2 171-90 2010 2007 2011 2012 2008 2005