1. Division of Pulmonary and Critical Care medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand;
2. Excellence Center for Sleep Disorders, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand;
3. Sleep Society of Thailand, Bangkok, Thailand;
4. Ramathibodi Hospital Sleep Disorder Center, Ramathibodi, Bangkok, Thailand;
5. Division of Pediatric Pulmonology, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand;
6. Research Center for Neuroscience and Salaya Sleep Research Laboratory, Institute of Molecular Biosciences, Mahidol University Salaya, Nakornpathom, Thailand