Acharya, R. C., B. Pradhan, and N. Thapa. “Outcome of Functional Endoscopic Surgery for Chronic Rhinosinusitus”. Nepalese Journal of ENT Head and Neck Surgery, vol. 5, no. 1, Feb. 2017, pp. 20-21, doi:10.3126/njenthns.v5i1.16872.