0012-7353 0012-7353 S0012-73532019000300254 10.15446/dyna.v86n210.77377 Colombia Colombia 00 07 2019 00 07 2019 86 210 254 261

[1] 2015 39 259-67 [2] 2011 3 1-14 [3] 2015 45 37-49 [4] 2016 121 324-32 [5] 2015 167 105-7 [6] 2015 7 9872-95 [7] 2016 120 85-92 [8] 2013 113 1673-84 [9] 2013 23 522-32 [10] 2007 1 1-15 [11] 2012 92 267-73 [12] 2006 73 660-73 [13] 2011 [14] 2012 33-89 [15] 1996 178 2005-9 [16] 2010 307-21 [17] 2010 [18] 2014 94 773-8 [19] 2010 120 960-6 [20] 1997 30 432-5 [21] 2003 [22] 2014 426 1539-53 [23] 2001 88 77-84 [24] 2005 71 643-50 [25] 2007 120 303-10 [26] 2002 184 6624-34 [27] 2007 77 136-47