The impact of COVID-19 on hospitalizations for pneumonia in school and preschool children. Research, Society and Development, [S. l.], v. 11, n. 7, p. e49511730231, 2022. DOI: 10.33448/rsd-v11i7.30231. Disponível em: https://rsdjournal.org/rsd/article/view/30231. Acesso em: 5 dec. 2025.