Oncel, Semih, Tamer Erdem, Murat Cem Miman, Davut Aktas, and M.Tayyar Kalcioglu. 2021. “Cholesteatoma of the Petrous Apex”. Annals of Medical Research 8 (4):0223-27. http://annalsmedres.org/index.php/aomr/article/view/2867.