@article{souza_amorim_2021,  title={Maternal mortality by COVID-19 in Brazil},  volume={21},  ISSN={1519-3829},  url={https://doi.org/10.1590/1806-9304202100S100014},  DOI={10.1590/1806-9304202100S100014},  journal={Revista Brasileira de Saúde Materno Infantil},  publisher={Instituto de Medicina Integral Prof. Fernando Figueira},  author={Souza, Alex Sandro Rolland and Amorim, Melania Maria Ramos},  year={2021},  month={Feb},  pages={253–256} }