0123-7799 0123-7799 S0123-77992018000200063 10.22430/22565337.779 Colombia Colombia 00 08 2018 00 08 2018 21 42 63 78

[1] 2016 31 1 1 397-411 [2] 2015 30 5 5 2736-46 [3] 2017 11 18 18 4546-55 [4] 2016 31 3 3 2064-75 [5] 2012 [6] 2000 290-5 [7] 2016 1-6 [8] 1996 11 3 3 1295-303 [9] 2017 106-10 [10] 2007 [11] 2013 1-7 [12] 2010 1-6 [13] 2001 791-6 [14] 1989 4 2 2 479-86 [15] 2010 [16] 2005 152 3 3 342-50