Marques, A., Martins, J., Diniz, J., Ramos, M., Yazigi, F., Onofre, M., & Carreiro da Costa, F. (2014). The correlates of meeting physical activity recommendations: a population-based cross-sectional study. Eur J Sport Sci, 14 Suppl 1, S462-470. doi: 10.1080/17461391.2012.713008.