1. Syphilis: Review with Emphasis on Clinical, Epidemiologic, and Some Biologic Features
2. World Health Organization (WHO). Screening donated blood for transfusion-transmissible infections: recommendations. Available from: https://www.who.int/publications/i/item/9789241547888. Accessed January 1, 2009.
3. National Health Commission of the People’s Republic of China. The blood donation law of the People’s Republic of China. Available from: http://www.nhc.gov.cn/fzs/s3576/201808/d7f8887cb0d340a48ee78d347b6ea346.shtml. Accessed August 30, 2018.
4. National Health Commission of the People’s Republic of China. The law of the People ‘s Republic of China on the prevention and control of infectious diseases. Available from: http://www.nhc.gov.cn/fzs/s3576/201808/6d00c158844f42c5bcf94993bffa665a.shtml. Accessed August 30, 2018.