2528-7907 2528-7907 S2528-79072018000100038 Ecuador Ecuador Ecuador 00 03 2018 00 03 2018 1 21 38 45

2007 2015 2004 2004 2007 2017 151 2014 2004 2006 M, M. C 2004 2004 2004 2004 2000 2012 2011 31 2010 2000