0012-7353 0012-7353 S0012-73532018000300242 10.15446/dyna.v85n206.68670 Mexico Mexico 00 09 2018 00 09 2018 85 206 242 249

[1] 2006 3rd [2] 2003 1-13 [3] 2007 3rd [4] 2009 3rd [5] 1987 [6] 2003 13 13 95-102 [7] 1995 25 25 288-99 [8] 2010 [9] Secretaría de Salud 2000 73-9 [10] 2004 [11] 1992 53-63 [12] 1992 23-34 [13] 1997 19-29 [14] 1992 [15] 2011 [16] 1992 [17] 2005 17 17 217-24 [18] 2002 México [19] 1999 [20] 2000 [21] 1979 617-37 [22] 1985 [23] 2000 [24] 1999