0188-6266 0188-6266 S0188-62662017000600078 10.15174/au.2017.1346 Mexico 00 12 2017 00 12 2017 27 6 78 83

2012 795-259 2012 128-647 2003 133 5^s2 5^s2 2 1700S-8S 2004 24 1 1 23-8 2015 171-756 1993 57 5 5 779S-85S 2001 85 ^s2 ^s2 2 S67-74 2013 62 5 5 575-94 2002 72 4 4 621-7 2010 91 4 4 907-12 2012 13 2 2 147-57 2001 12 6 6 449-57 2000 130 3 3 621-8 2003 38 1 1 61-88 1996 19 8 8 312-8 2003 96 1-3 1-3 117-23 2005 5 8 8 606-16 2012 14 2 2 71-83 2011 16 6 6 300-9 2016 157-8235 2008 153 1 1 6-20 2013 708-659 2012 733 1-2 1-2 92-9 2005 26 4-5 4-5 299-312 2006 28 1 1 219-42 2012 24 5 5 981-90 2012 17 4 4 389-401 2014 24 10 10 R453-62 2014 54 3 3 151-60 2013 62 5 5 764-75 2007 26 8 8 645-51 2014 30 2 2 2006 160 1 1 1-40 2002 99 4 4 2264-9 World Health Organization 2001 2012 19 2 2 82-6