MUHAMMAD RIAZ, SAMI MUMTAZ, MIRZA M SARWAR, TAHIR RASHID,. 2018. “Delayed Facial Nerve Paralysis After Tympanomastoidectomy. Incidence, Aetiology and Prognosis”. Journal of Fatima Jinnah Medical University 8 (3). http://jfjmu.com/index.php/ojs/article/view/148.