Demir, Ismail, Yuksel Toplu, and Ayse Ozcan Kucuk. “Unusual Cause of Dysphagia: Endodontic Canal File in the Posterior Wall of Hypopharynx”. Annals of Medical Research 26, no. 8 (May 25, 2021): 1725–1726. Accessed December 22, 2024. http://annalsmedres.org/index.php/aomr/article/view/1598.