0124-0064 0124-0064 S0124-00642018000600707 10.15446/rsap.v20n6.65680 Mexico Mexico Mexico Mexico Mexico Mexico 00 12 2018 00 12 2018 20 6 707 710

1 2008 3 142-69 2 2002 2 815-7 3 2006 21 6 6 673-9 4 2003 16 5 5 349-64 5 2010 12 1 1 116-25 6 2009 36 3 3 200-9 7 Instituto Nacional de Salud Pública 2016 8 FAO/OMS/UNU 2004 1 9 2014 30 1 1 153-64 10 1987 11 2000 20 9 9 1249-58 12 2007 8 7-18 13 2013 28 2 2 438-46 14 2010 55 3 3 722-5 15 2011 15 1 1 160-9 16 2014 6 2 2 155 17 2012 13 18 2011 11 1 1 6-11