2182-5173 2182-5173 S2182-51732020000600450 10.32385/rpmgf.v36i6.13076 Portugal Portugal 00 12 2020 00 12 2020 36 6 450 451 1 2011 2 2017 33 3 3 170 3 2017 33 5 5 310-2 4 2017 33 4 4 242 5 Equipa Editorial 2018 34 3 3 173-80 6 2018 34 3 3 123 7 2019 34 6 6 351-2