Berjis,N , , Etemadifar,M , , Chitsaz,A , , Maleki,M , and Kadkhodaei,A . "Comparing the Frequency of Sensorineural Hearing loss and Neurological Disorders, Speech Perception in Patients with Multiple Sclerosis and Healthy People", Journal of Isfahan Medical School, 28, 114, 2010, 843-847.