@article{marques_martins_sarmento_ramos_diniz_costa_2015,  title={Socio-demographic correlates of leisure time physical activity among
					Portuguese adults},  volume={31},  ISSN={0102-311X},  url={https://doi.org/10.1590/0102-311X00101614},  DOI={10.1590/0102-311X00101614},  number={5},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Marques, Adilson and Martins, João and Sarmento, Hugo and Ramos, Madalena and Diniz, José and Costa, Francisco Carreiro da},  year={2015},  month={May},  pages={1061–1070} }