0012-7353 0012-7353 S0012-73532019000300108 10.15446/dyna.v86n210.76739 Colombia Colombia 00 07 2019 00 07 2019 86 210 108 114

[1] 2001 [2] 1979 [3] 2019 9 1 1 731-52 [4] 2018 15 1551-60 [5] 2008 28-30 October [6] 1991 6 03 03 [7] 2014 [8] 2015 Houston, Texas, USA [9] 1995 12 171-81 [10] 1970 10 04 04