0871-9721 0871-9721 S0871-97212022000400319 10.32932/rpia.2022.12.096 Portugal 30 12 2022 30 12 2022 30 4 319 321 1 2017 2017 7318305 2 2019 99 6 6 508-15 3 2008 20 2 2 102-6