Macedo, Ana, Sofia Andrade, Inês Moital, António Moreira, Francisco Luís Pimentel, Sérgio Barroso, José Dinis, Noémia Afonso, and Xavier Bonfill. 2008. “ Objectives and Methodology - Perfil Study”. Acta Médica Portuguesa 21 (4). Lisbon, Portugal:329-34. https://doi.org/10.20344/amp.800.