de Queiroz D, Paiva A de A, Pedraza DF, Cunha MAL da, Esteves GH, de Luna JG, et al. Vitamin A deficiency and associated factors in children in urban areas. Rev. saúde pública [Internet]. 2013 Jun. 1 [cited 2024 Apr. 29];47(2):248-56. Available from: https://www.revistas.usp.br/rsp/article/view/76627