1. Department of Epidemiology and Biostatistics School of Public Health Xi'an Jiaotong University Health Science Center Xi'an China
2. National Cancer Center/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
3. Xi'an Center for Disease Control and Prevention Xi'an China
4. Henan Cancer Hospital Zhengzhou China
5. Wuwei Cancer Hospital of Gansu Province Wuwei China
6. Gansu Provincial Cancer Hospital Lanzhou China
7. Linzhou Cancer Hospital Linzhou China
8. Cixian Institute for Cancer Prevention and Control Cixian Cancer Hospital Handan China
9. Luoshan Center for Disease Control and Prevention Xinyang China
10. Center for Disease Control and Prevention of Sheyang County Yancheng China
11. Tumor Prevention and Treatment Institute Harbin Medical University Harbin China
12. Hunan Provincial Cancer Hospital Changsha China
13. Yueyang Lou District Center for Disease Prevention and Control Yueyang China
14. Centre for Health Economics Monash Business School Monash University Melbourne Vic. Australia