Nanda, Manpreet Singh, Shenny Bhatia, and Vipan Gupta. “Epidemiology of Nasal Polyps in Hilly Areas and Its Risk Factors”. International Journal of Otorhinolaryngology and Head and Neck Surgery 3, no. 1 (December 28, 2016): 77–81. Accessed October 23, 2025. https://www.ijorl.com/index.php/ijorl/article/view/268.