@article{duailibi_ribeiro_laranjeira_2008,  title={Profile of cocaine and crack users in Brazil},  volume={24},  ISSN={0102-311X},  url={https://doi.org/10.1590/S0102-311X2008001600007},  DOI={10.1590/S0102-311X2008001600007},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Duailibi, Lígia Bonacim and Ribeiro, Marcelo and Laranjeira, Ronaldo},  year={2008},  pages={s545–s557} }