@article{lang_tang_2019,  title={Smoking: it's still a big problem in children with asthma},  volume={95},  ISSN={0021-7557},  url={https://doi.org/10.1016/j.jped.2018.12.005},  DOI={10.1016/j.jped.2018.12.005},  number={5},  journal={Jornal de Pediatria},  publisher={Sociedade Brasileira de Pediatria},  author={Lang, Jason E. and Tang, Monica},  year={2019},  month={Sep},  pages={506–508} }