2218-3620 2218-3620 S2218-36202019000200142 Ecuador 00 06 2019 00 06 2019 11 2 142 147

2005 2009 2005 17 3 3 2009 34 11 11 2005 7 1 1 44-55 2013 2000 2008 Norma Codex 1987 2012 2010 25 4 4 127-35