Zafar Mahmood, Hammad Raza, Ikram Ullah, Salman Niaz Ahmed, Sohail Tirmizi, Saad Shakil, “Association of Night Hypoxia with Otolith Dysfunction Patients Having Obstructive Sleep Apnea”, Pakistan Journal of Medical & Health Sciences, vol. 16, no. 05, p. 156, May 2022.