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, [S. l.], v. 3, n. 1, p. 121–136, 2024. DOI: 10.56238/isevjhv3n1-013. Disponível em: https://sevenpubl.com.br/ISJHR/article/view/3546. Acesso em: 21 aug. 2025.