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History
- Published online February 21, 2021.
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Copyright: © Saudi Medical Journal This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial License (CC BY-NC), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Author Information
- Associate Professor, Sleep Disorder Center, College of Medicine, Department of Medicine, King Saud University, PO Box 225503, Riyadh 11324, Kingdom of Saudi Arabia. Tel. +966 (1) 4671521. Fax. +966 (1) 4672558. E-mail: ashammam2{at}yahoo.com
- Respiratory Medicine Unit, King Fahd Medical City, Riyadh, Kingdom of Saudi Arabia.