@article{machado_gomide_bernardino_ronzani_2019,  title={Facebook recruitment of smokers: comparing gain- and loss-framed ads for the purposes of an Internet-based smoking cessation intervention},  volume={35},  ISSN={0102-311X},  url={https://doi.org/10.1590/0102-311X00151318},  DOI={10.1590/0102-311X00151318},  number={10},  journal={Cadernos de Saúde Pública},  publisher={Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz},  author={Machado, Nathália Munck and Gomide, Henrique Pinto and Bernardino, Heder Soares and Ronzani, Telmo Mota},  year={2019},  pages={e00151318} }