@article{villela_2020,  title={How limitations in data of health surveillance impact decision making in the Covid-19 pandemic},  volume={44},  ISSN={0103-1104},  url={https://doi.org/10.1590/0103-11042020E413},  DOI={10.1590/0103-11042020E413},  number={spe4},  journal={Saúde em Debate},  publisher={Centro Brasileiro de Estudos de Saúde},  author={Villela, Daniel Antunes Maciel},  year={2020},  pages={206–218} }