KANAKALA, M.; PEDIREDLA, K.; PACHIAPPAN, N.; RAMAYI, R. R.; REHMAN, T. Effect of Vitamin A supplementation on preventing recurrent acute lower respiratory tract infections in children. International Journal of Contemporary Pediatrics, [S. l.], v. 6, n. 4, p. 1632–1637, 2019. DOI: 10.18203/2349-3291.ijcp20192767. Disponível em: https://www.ijpediatrics.com/index.php/ijcp/article/view/2526. Acesso em: 7 jan. 2026.