1. Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
2. Sleep Disorders Center, Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
3. Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
4. Department of Mechanical and Electro-mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
5. Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
6. Department of Neurology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan