@article{amorim_barros_2014,  title={Equity of access to Pap smears: population-based study in
               Campinas, São Paulo, Brazil},  volume={17},  ISSN={1415-790X},  url={https://doi.org/10.1590/1809-4503201400060012},  DOI={10.1590/1809-4503201400060012},  journal={Revista Brasileira de Epidemiologia},  publisher={Associação Brasileira de Saúde Coletiva},  author={Amorim, Vivian Mae Schmidt Lima and Barros, Marilisa Berti de Azevedo},  year={2014},  pages={136–149} }