6Hsu HM, Lu CF, Lee SC, et al. Seroepidemiology surey for hepatitis B virus infection in Taiwan: the effect of hepatitis B mass immuination. J Infect Dis, 1999,179:367-370.
7WHO.Hepatitis B surface antigen assay: operational characteristics.2000.1-15.
8Norihiro F,Jun H,Yasunori S.The elimination Of hepatitis B virus infection:changing seroepidemiology of hepatitis A and B virus infection in Okinawa Japan over a 26-year period Am J Med Hyp,1998.59:693—698.
