0012-7353 0012-7353 S0012-73532021000300224 10.15446/dyna.v88n218.92420 Colombia Colombia Colombia 00 09 2021 00 09 2021 88 218 224 229

[1] 2013 [2] 2014 17 2 2 137-49 [3] 2014 2 1 1 254-64 [4] 2011 19 1-2 1-2 37-42 [5] 2017 21 1 1 81-90 [6] 1981 65 5 5 435-6 [7] 2013 15 1 1 119-4 [8] 2010 78 7 7 871-6 [9] 2012 26 4 4 391-5 [10] 1996 86 9 9 906-913. [11] 2012 2 1 1 33-42 [12] [13] 2014 30 4 4 393-406 [14] 2015 21 3 3 241-53 [15] 2015 77 1 1 65-73 [16] 2014 57 2 2 238-43 [17] 2013 15 5 5 820-6 [18] 2015 33 2 2 203-11 [19] 2006 154 5 5 309-16 [20] 2000 90 1 1 57-66 [21] 2013 64 1 1 99-103