0185-3325 0185-3325 S0185-33252020000200057 10.17711/sm.0185-3325.2020.009 Mexico Mexico 00 04 2020 00 04 2020 43 2 57 63

2016 433-44 2007 4 3 3 141-8 2013 22 3 3 277-84 2010 52 4 4 292-304 2016 589-98 2009 28 3 3 771-82 2014 16 8 8 460 2013 2003 52 3 3 279-87 2003 160 8 8 1494-500 2004 351 1 1 13-22 2014 65 8 8 997-1004 2016 24 5 5 357-66 2009 301 11 11 1111-3 2013 310 5 5 496-506 2017 40 3 3 379-95 2016 181 9 9 1021-32 2013 76 2 2 97-125 2014 71 5 5 514-22 2017 74 11 11 1095-103 2015 72 6 6 561-9 2014 32 1 1 13-24 2014 71 5 5 493-503 2015 45 4 4 717-26 2016 4 2 2 92-9 2015 32 1 1 3-12 2018 75 10 10 1022-32 2017 74 9 9 924-31 2015 72 9 9 917-26 2011 68 10 10 1065-71 2014 20 6 6 448-59 World Health Organization 2000