0026-1742 0026-1742 S0026-17422017000600051 Mexico 00 12 2017 00 12 2017 60 6 51 55

1 World Health Organization 2016 2 World Health Organization 2016 3 2013 496 504-7 4 1999 5 World Health Organization 2014 6 Walker T Moreira LA 2011 106 Suppl l Suppl l 212-7 7 2009 323 5910 5910 141-4 8 2016 3 7 7 293-5 9 2015 10 2008 6 741-51