8Plitt SS, Sherman SG, Stratchde SA, et al. Herpes simplex virus 2 and syphilis among young drug users in Baltimore, Maryland [J]. Sex Trans Infect, 2005, 81 (3): 248-253.
9Lopez-Zetina J, Ford W, Weber M, et al. Predictors of syphilis sero reactivity and prevalence of HIV among street recruited injection drug users in Los Angeles County, 1994-6 [J]. Sex Trans Infeet, 2000. 76 (6): 462-469.
7Mathers BM,Degenhardt L,Phillips B,et al.Global epidemiology of injecting drug use and HIV among people who inject drugs:a systematic review[J].Lancet,2008,372( 9651) : 1733-1745.
10Mathers BM, Degenhardt L, Phillips B, et al. Global epidemiology of injecting drug use and HIV among people who inject drugs : a systematic review[ J ] .Lancet,2008,372(9651 ) : 1733-1745.