1. Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan
2. Center of Sleep Disorder, National Taiwan University Hospital, Taipei, Taiwan
3. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
4. School of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
5. Center for Electronics Technology Integration, National Taiwan University, Taipei, Taiwan
6. Department of Multimedia Technology Development, MediaTek Inc., Hsinchu, Taiwan
7. Division of Pulmonary, Critical Care and Sleep Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH
8. Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan