2218-3620 2218-3620 S2218-36202020000400426 Ecuador 00 08 2020 00 08 2020 12 4 426 435

2014 2009 19 25-41 2019 2019 2016 16 2 2 194-201 2018 7 2018 Guayaquil, Ecuador 2012 10 3 3 49-69 2000 23 215-31 2010 24 2 2 2005 36 3 3 1-13