“Characteristic of Anatomical Variations in Paranasal Sinus CT-Scan of Chronic Rhinosinusitis Patients at the ENT Clinic Prof. Dr. I.G.N.G Ngoerah General Hospital Denpasar in 2021”. 2023. European Journal of Clinical Medicine 4 (5): 1-4. https://doi.org/10.24018/clinicmed.2023.4.5.275.