1699-714X 1699-714X S1699-714X2020000400018 10.4321/s1699-714x2020000400018 España España 00 12 2020 00 12 2020 30 4 359 360 2019 2018 17 1 1 277 2019 19 1 1 45-57 2015 7 299-312 2014 32 5 5 1146-53 2019 321 1 1 44-55