@article{mendoza-sassi_béria_2003,  title={Prevalence of having a regular doctor, associated factors, and the effect on health services utilization: a population-based study in Southern Brazil},  volume={19},  ISSN={0102-311X},  url={https://doi.org/10.1590/S0102-311X2003000500004},  DOI={10.1590/S0102-311X2003000500004},  number={5},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Mendoza-Sassi, Raúl and Béria, Jorge U.},  year={2003},  month={Sep},  pages={1257–1266} }