Salgado Carneiro Zenha, P., Francisco Belfort Brito, J., Santos, M., & Bastos da Cruz, P. (2024). The impacts of the COVID-19 pandemic on the opening and closing of companies and on ICMS tax collection in the state of Maranhão from 2019 to 2021. International Seven Journal of Health Research, 3(1), 121–136. https://doi.org/10.56238/isevjhv3n1-013