Mohammed Saeed Abd Ali, and Osama Awaad Ali. 2023. “Vitamin D Deficiency Contributes to Development of Nasal Polyps in Iraqi Patients Suffering from Chronic Rhinosinusitis”. Journal of Population Therapeutics and Clinical Pharmacology 30 (8): 349-56. https://doi.org/10.47750/jptcp.2023.30.08.038.