VELUSAMY, P.; DEVARAJULU, K. Prevalence of vitamin D deficiency in exclusively breastfed infants. International Journal of Contemporary Pediatrics, [S. l.], v. 6, n. 2, p. 299–301, 2019. DOI: 10.18203/2349-3291.ijcp20190072. Disponível em: https://www.ijpediatrics.com/index.php/ijcp/article/view/2259. Acesso em: 25 nov. 2025.