1. Sleep Research Clinic and Laboratory, Department of Psychology, The University of Hong Kong, Hong Kong
2. Department of Chemical Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
3. Li Chiu Kong Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
4. Guang Dong Mental Health Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
5. The State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong