Mohammed Saeed Abd Ali, Osama Awaad Ali. Vitamin D deficiency contributes to development of nasal polyps in Iraqi patients suffering from chronic rhinosinusitis. J Popl Ther Clin Pharmacol [Internet]. 2023 Apr. 25 [cited 2024 Jul. 27];30(8):349-56. Available from: https://jptcp.com/index.php/jptcp/article/view/1689