@article{oliveira_moreira_reis_freire_2015,  title={Dental caries in 12-year-old schoolchildren: multilevel analysis of
               individual and school environment factors in Goiânia},  volume={18},  ISSN={1415-790X},  url={https://doi.org/10.1590/1980-5497201500030010},  DOI={10.1590/1980-5497201500030010},  number={3},  journal={Revista Brasileira de Epidemiologia},  publisher={Associação Brasileira de Saúde Coletiva},  author={Oliveira, Lorena Batista de and Moreira, Rafael da Silveira and Reis, Sandra Cristina Guimarães Bahia and Freire, Maria do Carmo Matias},  year={2015},  month={Jul},  pages={642–654} }