1. National Center for Chronic and Non-communicable Disease Control and Prevention; Chinese Center for Disease Control and Prevention; Beijing China
2. Research Centre for Public Health; Tsinghua University; Beijing China
3. Melbourne Sexual Health Centre; Alfred Health; Melbourne Australia
4. Central Clinical School; Faculty of Medicine, Nursing and Health Sciences; Monash University; Melbourne Australia
5. School of Public Health and Preventive Medicine; Faculty of Medicine, Nursing and Health Sciences; Monash University; Melbourne Australia