1. Department of NCDs Control and Prevention; Zhejiang Provincial Center for Disease Control and Prevention; Hangzhou China
2. Tongxiang Center for Disease Control and Prevention; Tongxiang China
3. Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU); Nuffield Department of Population Health; University of Oxford; Oxford UK
4. Chinese Academy of Medical Sciences; Beijing China
5. Department of Epidemiology; School of Public Health; Peking University Health Science Center; Beijing China