1. Respiratory Medicine, Nihon University School of Medicine
2. Department of Internal Medicine, Iwate Medical University, School of Medicine
3. Fourth Department of Internal Medicine, Nippon Medical School
4. Division of Respiratory, Medicine and Clinical Allergy, Fujita Health University School of Medicine
5. Respiratory Medicine, Kyoto University School of Medicine
6. Health Administration Center, Department of Informatics on Pathophysiology, Tohoku University School of Medicine
7. Nakamura Sleep Clinic