4Zou S,Stramel SL,Notari EP,et al.Current incidence and residual risk of hepatitis B infection among blood donors in the United States [ J ] .Transfusion, 2009,49 ( 8 ) : 1609-1620.
5Liang X,Bi S,Wang L,et al.Epidemiological serosurvey of hepatitis B in China--declining HBV prevalence due to hepatitis B vaceination[Jl.Vaccine,2009,27(47) :6550-6557.