0304-2847 0304-2847 S0304-28472018000308617 10.15446/rfnam.v71n3.71667 Ecuador Ecuador 00 09 2018 00 09 2018 71 3 8617 8622

AOAC 2005 18th 1986 2004 74 74 2157-84 1974 158-92 2003 51 5 5 1265-9 2016 70 1 1 85-91 2016 18 1 1 71 2014 2010 122 3 3 695-9 2016 35 2 2 222-42 2012 153 1-2 1-2 171-5 2012 2 2 212-24 2004 7 2 2 187-90 2017 10 10 22-7 2001 25-49 2004 17 5 5 675-85 2000 2012 2017 8 12 12 4601-10 2017 Second 2016 2003 Fifth 45-74 1999 79 13 13 1861-4 2007 111 1 1 63-81 2017 89 89 165-85 2010 119 119 1597-604 2007 2017 98 5 5 1927-34 World Health Organization 1998 World Health Organization 2011 1980 8-39