Restuti, R.D., Otology Division, Ear Nose and Throat Department, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo General Hospital, Jakarta, Indonesia; Priyono, H., Otology Division, Ear Nose and Throat Department, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo General Hospital, Jakarta, Indonesia; Saleh, R.R., Otology Division, Ear Nose and Throat Department, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo General Hospital, Jakarta, Indonesia; Sriyana, A.A., Otology Division, Ear Nose and Throat Department, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo General Hospital, Jakarta, Indonesia