@article{gomes_nunes_2015,  title={Comparative analysis between condom use clusters and risk behaviours
                    among Portuguese university students},  volume={24},  ISSN={0104-1290},  url={https://doi.org/10.1590/S0104-12902015000100027},  DOI={10.1590/S0104-12902015000100027},  number={1},  journal={Saúde e Sociedade},  publisher={Faculdade de Saúde Pública, Universidade de São Paulo. Associação Paulista de Saúde Pública.},  author={Gomes, Alexandra and Nunes, Cristina},  year={2015},  month={Jan},  pages={350–360} }