1. Department of Neurology, Second Affiliated Hospital of Soochow University, Suzhou, Suzhou, Jiangsu 215123, China
2. Sleep centre and Clinical Research Center of Neurological Disease, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215123, China
3. Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, China
4. Xinjiang Medical University, Urumqi, Xinjiang 830011, China