0872-0169 0872-0169 S0872-01692021000200082 10.32932/pjnh.2021.07.125 Portugal 30 06 2021 30 06 2021 35 2 82 83 1 2017 12 10 10 1714 2 2017 12 10 10 1718-20 3 2018 13 2 2 331-4