1665-3521 1665-3521 S1665-35212016000300087 México Mexico México Mexico 00 09 2016 00 09 2016 29 3 87 92

[1] 2010 28 232 [2] 2013 176 960 [3] 2005 21 849 [4] 2010 26 784 [5] 2013 42 1287 [6] 2013 12 205 [7] 2007 12 80 [8] 2001 19 2825 [9] 2005 21 5517 [10] 2010 135 827 [11] 2007 7 1238 [12] 2001 79 115 [13] 2006 128 3716 [14] 2000 16 1711 [15] 2004 9 69 [16] 2009 14 6 [17] 2009 329 46 [18] 2010 178 415 [19] 2007 107 922 [20] 2013 189 76 [21] [22] 2012 184 533 [23] 2005 8 30 [24] 2006 21 3072 [25] 2013 8 522 [26] 2004 126 7206 [27] 1994 21 336