0185-2760 0185-2760 S0185-27602020000200159 10.36857/resu.2020.194.1129159 Chile Spain 00 06 2020 00 06 2020 49 194 159 162 2015 2016 2017 303 7-12 2016 59 11 11 15-7 2016 2017 95 1 1 118-27 2018 39 5 5 1-9