1. a The Third Xiangya Hospital , Central South University , Changsha , China
2. b The School of Public Health, Xiangya Medical School , Central South University , Changsha , China
3. c The Brain Hospital of Nanjing City , Jiangsu Province , Nanjing , China
4. d The Center of Mental Health of Tianjin City & The Tianjin Anding Hospital , Tianjin , China