0120-2448 0120-2448 S0120-24482018000400217 Colombia 00 12 2018 00 12 2018 43 4 217 218 1 2011 39 7 7 1675-82 2 2016 193 3 3 259-72 3 2016 193 3 3 228-30 4 2016 44 12 12 417 5 2016 44 12 12 429