0872-671X 0872-671X S0872-671X2021000200044 10.24950/i/71/21/2/2021 Portugal Portugal Portugal 30 06 2021 30 06 2021 28 2 44 46 1 2018 378 1029-41 2 2018 97 3 2019 5 1-21 4 2008 8 190 5 1996 22 906-19 6 2017 35 2410-8