@article{giovanella_sánchez_2007,  title={Regional integration and health policies},  volume={23},  ISSN={0102-311X},  url={https://doi.org/10.1590/S0102-311X2007001400001},  DOI={10.1590/S0102-311X2007001400001},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Giovanella, Ligia and Sánchez, Delia M.},  year={2007},  pages={S115–S116} }