1. Department of Epidemiology, School of Public Health, and the Key Laboratory of Public Health Safety of Ministry of Education, Fudan University
2. Shanghai Center for Disease Control and Prevention
3. Xuhui District Center for Disease Control and Prevention
4. Minhang District Center for Disease Control and Prevention
5. Hongkou District Center for Disease Control and Prevention
6. Jing'an District Center for Disease Control and Prevention
7. Shanghai Piaoxue Cultural Media Limited
8. National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention