2218-3620 2218-3620 S2218-36202018000200221 República del Ecuador 00 02 2018 00 02 2018 10 2 221 227

2010 2012 21 2 2 297-349 2012 1-122 2002 18 83 83 2001 2 2 2 1-14 2007 13 35 35 107-12 2012 28 47 47 54-66 2013 29 128 128 303-12 2016 2003 1