@article{seixas_uchimura_viana_silva_2017,  title={Physicians’ circularity in health regions in Brazil},  volume={17},  ISSN={1519-3829},  url={https://doi.org/10.1590/1806-9304201700S100009},  DOI={10.1590/1806-9304201700S100009},  journal={Revista Brasileira de Saúde Materno Infantil},  publisher={Instituto de Medicina Integral Prof. Fernando Figueira},  author={Seixas, Paulo Henrique and Uchimura, Liza Yurie Teruya and Viana, Ana Luiza d’Ávila and Silva, Rodrigo Calado da},  year={2017},  pages={S199–S208} }