0120-3347 0120-3347 S0120-33472020000100057 10.1097/cj9.0000000000000150 Colombia Colombia Colombia 00 03 2020 00 03 2020 48 1 57 58 1 2019 47 211-8 2 2019 47 219-25 3 2019 47 236-42 4 2019 47 243-4 5 2019 47 245-8 6 2019 47 249-52 7 2019 47 261-3 8 2019 47 260