@article{echer_barreto_2008,  title={Determination and support as successful factors for smoking cessation},  volume={16},  ISSN={0104-1169},  url={https://doi.org/10.1590/S0104-11692008000300018},  DOI={10.1590/S0104-11692008000300018},  number={3},  journal={Revista Latino-Americana de Enfermagem},  publisher={Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo},  author={Echer, Isabel Cristina and Barreto, Sérgio Saldanha Menna},  year={2008},  month={May},  pages={445–451} }