Dashzeveg, Shuren, Otgonbayar Luvsannorov, and Damdindorj Boldbaatar. “Clinical Factors Associated With Very Severe Obstructive Sleep Apnea in Mongolian Patients: A Case-Control Study”. Central Asian Journal of Medical Sciences 7, no. 3 (September 21, 2021): 181–188. Accessed July 6, 2024. https://mongoliajol.info/index.php/CAJMS/article/view/2982.