1. Prevalence and incidence of selected sexually transmitted infections, Chlamydia trachomatis, Neisseria gonorrhoeae, syphilis and Trichomonas vaginalis: methods and results used by WHO to generate 2005 estimates;World Health Organization,2010
2. Epidemiologic reports of syphilis and gonorrheae case reports in China;NCSTD;Bull STI Prev Control,2012
3. UK National Guidelines on the Management of Syphilis 2008;Kingston;Int J STD AIDS,2008
4. Sexually transmitted diseases treatment guidelines, 2010;Centers for Disease Control and Prevention;MMWR Recomm Rep,2010
5. Azithromycin versus penicillin G benzathine for early syphilis;Bai;Cochrane Database Syst Rev,2012