@article{bignardi_castello_aquino_delfino_2023,  title={Is the vitamin D status of patients with COVID-19 associated with reduced mortality? A systematic review and meta-analysis},  volume={67},  ISSN={2359-3997},  url={https://doi.org/10.20945/2359-3997000000588},  DOI={10.20945/2359-3997000000588},  number={2},  journal={Archives of Endocrinology and Metabolism},  publisher={Sociedade Brasileira de Endocrinologia e Metabologia},  author={Bignardi, Paulo R. and Castello, Paula de Andrade and Aquino, Bruno de Matos and Delfino, Vinicius Daher Alvares},  year={2023},  month={Mar},  pages={276–288} }