@article{roux_2015,  title={Health in cities: is a systems approach needed?},  volume={31},  ISSN={0102-311X},  url={https://doi.org/10.1590/0102-311XDE01S115},  DOI={10.1590/0102-311XDE01S115},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Roux, Ana V. Diez},  year={2015},  month={Nov},  pages={9–13} }