Text mining and sentiment analysis applied to Twitter posts about Covid-19 vaccines. Research, Society and Development, [S. l.], v. 11, n. 13, p. e364111335490, 2022. DOI: 10.33448/rsd-v11i13.35490. Disponível em: https://rsdjournal.org/rsd/article/view/35490. Acesso em: 5 dec. 2025.