@article{sá_lourenço_teixeira_barros_costa_lemos_2021,  title={Urgent/emergency surgery during COVID-19 state of emergency in Portugal: a retrospective and observational study},  volume={71},  ISSN={2352-2291},  url={https://doi.org/10.1016/j.bjane.2021.01.003},  DOI={10.1016/j.bjane.2021.01.003},  number={2},  journal={Brazilian Journal of Anesthesiology},  publisher={Sociedade Brasileira de Anestesiologia (SBA)},  author={Sá, Andreia Filipa and Lourenço, Sofia Fonseca and Teixeira, Rafael da Silva and Barros, Filinto and Costa, António and Lemos, Paulo},  year={2021},  month={Mar},  pages={123–128} }