Tripathy, S. M., & Panda, R. (2019). Comparative study of hypertonic saline nasal douching versus normal saline nasal douching in post operative endoscopic sinus surgery patients. International Journal of Otorhinolaryngology and Head and Neck Surgery, 5(3), 598–602. https://doi.org/10.18203/issn.2454-5929.ijohns20191538