Viral hepatitis in the state of Piauí: epidemiological characterization in a hematology and hemotherapy center. Research, Society and Development, [S. l.], v. 9, n. 1, p. e135911804, 2020. DOI: 10.33448/rsd-v9i1.1804. Disponível em: https://rsdjournal.org/rsd/article/view/1804. Acesso em: 5 dec. 2025.