1. Sleep Medicine Center, Department of Respiratory and Critical Care Medicine, Mental Health Center, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
2. Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington
3. Sleep Research Laboratory, Center for Integrative Neuroscience and Inflammatory Diseases, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, Virginia