1870-9036 1870-9036 S1870-90362018000200151 Mexico Mexico 00 12 2018 00 12 2018 35 151 179

2004 2016 2006 3 1998 6 6 13-9 2012 2012 2010 09 09 27-42 2005 67-85 2016 23 23 100-19 2013 2008 2005 2010 181-204 2007 2003 2012 4 4 30-58 2006 Quito, Ecuador 1995 I 2 2 33-52 2003 2004 111-4 2011 20 3 3 738-52 2010 2015 Secretaría de Salud 2012 2016 33-50 2008 1991