Savranlar, Ahmet, Alpay Alkan, O.Gazi Yigitbasi, and Faruk Atabey. “Case Report: Metalic Foreign Body in Eustachian Tube”. Annals of Medical Research 9, no. 3 (May 25, 2021): 0223–0224. Accessed July 22, 2024. http://annalsmedres.org/index.php/aomr/article/view/2912.