1665-3521 1665-3521 S1665-35212016000300078 Mexico Mexico Mexico Mexico Mexico Mexico 00 09 2016 00 09 2016 29 3 78 82

[1]. 2001 207 247 [2]. 2009 95 022116 [3]. 2003 38 1559 [4]. 2001 13 1301 [5]. 2003 23 2289 [6]. 2006 96 361 [7]. 2011 509 1079 [8]. 2011 54 390 [9]. 2010 17 793 [10]. 2010 506 395 [11]. 1981 14 22 [12]. 1993 5 412 [13]. 2009 140 149 [14]. 2009 143 278 [15]. 2012 171-172 686 [16]. 1950 72 4847 [17]. 2007 17 4426 [18]. 2000 12 2763 [19]. 2007 129 11061 [20]. 2006 130 41 [21]. 2007 27 903 [22]. 2001 204 98 [23]. 2007 38 1480 [24]. 1992 45 500 [25]. 1991 18 279 [26]. 2003 97 217