1. West China School of Public Health and West China Fourth Hospital Sichuan University Chengdu China
2. West China Research Center for Rural Health Development Sichuan University Chengdu China
3. Social System Design Lab, George Warren Brown School of Social Work Washington University in St. Louis St. Louis Missouri USA
4. Department of Psychiatry University of Rochester Medical Center Rochester New York USA
5. West China Hospital Sichuan University Chengdu China
6. Dementia Care & Research Center Peking University Institute of Mental Health (Sixth Hospital) Beijing China
7. Beijing Dementia Key Lab National Clinical Research Center for Mental Disorders, Key Laboratory for Mental Health, National Health Commission Beijing China