Gupta N, Gupta R, Singh I, Kotwal S. Tracheoesophageal groove: a reliable landmark. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2019 Apr. 26 [cited 2025 Nov. 2];5(3):545-8. Available from: https://www.ijorl.com/index.php/ijorl/article/view/1459