2Singh A E,Romanowski B.Syphilis:review with emphasis on clinical, epidemiologic, and some biologic feature[J].Clin Microbiol Rev, 1999,12 ( 2 ) : 187-209.
3Brightbill T C,lhmeidan I H, Post,el al.Neurosyphilis in HIV-positive and HIV-negative patients: neuroimaging findings[J].AJNR, 1995, 16: 703-711.
