2215-3411 2215-3411 S2215-34112020000300016 10.15517/ijds.2020.42166 Chile 00 12 2020 00 12 2020 22 3 16 18 2011 16 4 4 223-30 2018 146 5 5 643-52 2015 29 4 4 395-7 2012 196 9 9 594 2020 2020 894 2020 25-45