Upadhya, Ila B., Dhaval C. Patel, and Kartika R. Rao. “Hoarseness of Voice-Prospective Study: Etiology, Evaluation and Treatment”. International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 4 (March 25, 2020): 740–746. Accessed November 2, 2025. https://www.ijorl.com/index.php/ijorl/article/view/2035.