@article{ferreira_patino_2019, title={Loss to follow-up and missing data: important issues that can affect your study results}, volume={45}, ISSN={1806-3713}, url={https://doi.org/10.1590/1806-3713/e20190091}, DOI={10.1590/1806-3713/e20190091}, number={2}, journal={Jornal Brasileiro de Pneumologia}, publisher={Sociedade Brasileira de Pneumologia e Tisiologia}, author={Ferreira, Juliana Carvalho and Patino, Cecilia Maria}, year={2019}, pages={e20190091} }