0016-3813 0016-3813 S0016-38132021000100061 10.24875/gmm.20000105 México México México 00 02 2021 00 02 2021 157 1 61 66

1 2016 65 1-44 2 1991 13 1227-40 3 1943 4 189-211 4 Pan American Health Organization 2016 5 Pan American Health Organization 2011 6 2004 42 90-8 7 2013 52 314-7 8 2015 34 125-30 9 2018 38 69-76 10 2012 11 2008 6 375-86 12 2012 366 1423-32 13 2008 14 1135-7 14 1981 75 156-61 15 1979 139 443-8 16 2017 17 2011 5 737-41 18 2013 3 27 19 2012 2 345-8 20 2008 4 687-92 21 2007 7 1058-60