Prof Dr. Ramesh Azad, Dr. Siddharth Sharma, and Dr. Sunil Sharma. 2021. “Pulmonary Function Tests in Patients With Chronic Rhinosinusitis : A Comparative Study”. Global Journal of Medical Research 21 (F8):5-11. https://doi.org/10.34257/GJMRFVOL21IS8PG5.