Nanda, Manpreet Singh, and Ram Krishan Sharma. “Changing Trends in Prevalence of Goitre in Hilly Areas”. International Journal of Otorhinolaryngology and Head and Neck Surgery 3, no. 1 (December 28, 2016): 66–70. Accessed October 23, 2025. https://www.ijorl.com/index.php/ijorl/article/view/263.