KUMAR, P.; GOWDRA, A.; ARATHI, A.; SAMPATH, A. A clinical study to determine the relationship between serum vitamin D levels and severity of asthma. International Journal of Contemporary Pediatrics, [S. l.], v. 4, n. 4, p. 1397–1400, 2017. DOI: 10.18203/2349-3291.ijcp20172673. Disponível em: https://www.ijpediatrics.com/index.php/ijcp/article/view/816. Acesso em: 18 feb. 2025.