SAHNI, D.; BAGRI, D.; BHAGAT, S.; SHARMA, D.; SINGH, J. A study to evaluate the relationship between serum vitamin d level and chronic rhinosinusitis. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 5, n. 5, p. 1388–1393, 2019. DOI: 10.18203/issn.2454-5929.ijohns20193889. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/1659. Acesso em: 1 nov. 2025.