0120-3347 0120-3347 S0120-33472018000200175 10.1097/cj9.0000000000000033 Colombia Colombia Colombia 00 06 2018 00 06 2018 46 2 175 176 1 2014 259 1056-67 2 2016 123 1591-602 3 2013 29 472-7 4 2015 112 225-30 5 2017 116 164-71