The COVID-19 pandemic in Brazil: an application of the k-means clustering method. Research, Society and Development, [S. l.], v. 9, n. 10, p. e5829109059, 2020. DOI: 10.33448/rsd-v9i10.9059. Disponível em: https://rsdjournal.org/rsd/article/view/9059. Acesso em: 6 dec. 2025.