2183-8453 2183-8453 S2183-84532020000100062 10.31252/rpso.08.02.2020 Portugal 30 06 2020 30 06 2020 9 62 67 1 DGS 2 EUR-Lex 2003 3 DRE 2005 4 ACT 5 IARC 6 BMJ 2018 7 DRE 2007 8 WHO 9 DGS 10 SC 11 DRE 2001 12 2007 75 5 5 683-8 13 2006 32 2 2 S48-53