1405-7743 1405-7743 S1405-77432017000400457 Mexico Mexico Mexico 00 12 2017 00 12 2017 18 4 457 464

1995 20 273-97 2000 2012 120 3 3 656-63 2002 2a 82-7 2010 121 1630-6 2007 51 4891-902 1936 7 179-88 1989 57 3 3 233-8 2005 143 10 10 697-706 2000 2a 2008 117 1711-6 2009 31 7 7 611-20 2010 2a 120-5 2013 3 90 90 23-30 2007 92 2 2 199-205 Secretaría de Salud 2010 7 2009 120 1850-7 2002 99 6 6 1938-42 2013 11-6 2009 642-266