Ekhar, V. R., R. V., R. N. Shelkar, and A. V. Sarode. “Identification of External Branch of Superior Laryngeal Nerve During Thyroid Surgery: A Prospective Study”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 4, no. 1, Dec. 2017, pp. 228-32, doi:10.18203/issn.2454-5929.ijohns20175630.