1[4]Kee M L, Young SK, Young Y K, et al. Emergence of vaccintinduced escape mutant of hepatitis B virus with multiple surface gene mutations in a Korean child[J] .J Korean Med Sci 2001, 16(3): 359-362.
2[5]Mele A, Tancredi F, Romano L, et al. Effectiveness of hepatitis B vaccination in babies born to hepatitis B surface antigen-positive mothers in Italy[J]. J Med Virol 2001,63(3) :210-216.
3[6]Oon CJ, Chen WN, Goo KS, et al. Intra-familial evidence of horizontal transmision of hepatitis B virus surface antigen mutant G145R[J ]. J Infect 2000,41 (3): 260-264.
4[7]Chen WN, Oon CJ, Koh S, et al. Horizontal transmission of a hepatitis Bvirus surface antigen mutant [J ]. J Clin Microbiol 2000,38 (2): 938-939.
5[8]Santantionio T, Gunther S, Sterneck M, et al. liver graft infection by qBV S-gene mutants in transplant patients receiving longterm HBlg propbylaxis [J ]. Hepatogastroenterology 1999, 46(27): 1848-1854.
6[9]Samreen I, Francesco T, Richard ST, et al. Novel immunoassay for the detection of hepatitis B surface "escape" mutants and its application in liver transplant recipients[J ]. J Med Virol2001,63:210-216.
7[10]KalininaT, AnnaR, LutzF, etal. Adominant hepatitis B virus population defective in virus secretion because of several S-gene mutations from a patient with fulminat hepatitis[J ]. Hepatology Vol 2001,34: 386-393.
8[11]Rodriguez-Frias F, Buti M, Jardi R, et al. Genetic alterations in the S gene of hepatitis B, chronic hepatitis B and hepatitis B liver cirrhosis and after liver transplantation [J]. Liver 1999,19(3):177-182.
9[12]William K, Owiredu B A, Anna K, et al. Hepatitis B virus DNA in serum of helthy black African adults positive for hepatitis B surface antibody alone: possible association with recombination between genotypes A and D[J ]. J Med Virol 2001,64:441-454.
10[13]Chen WN, Oon CJ, Lim GK, et al. Hepatitis B virus surface antigen(HBsAg) mutants in singapore adults and vaccinated children with high anti-hepatitis B virus antibody levels but negative for HBsAg[J]. J Clinical Microbiol 2000,38(7) :2793-2794.
