2Okamoto H, Tsuda E Sakugawa H, et al. Typing hepatitis B virus by homology in nucleotide sequence: comparison of surface antigen subtypes. J Gen Virol, 1988, 69(Pt 10): 2575-2783.
3Kao JH, Chen PJ, Lai MY, et al. Hepatitis B genotypes correlate with clinical outcomes in patients with chronic hepatitis B.Gastroenterology, 2000, 118: 554-559.
4Orito E, Mizokami M, Sakugawa H, et al. A casecontrol study for clinical and molecular biological differences between hepatitis B viruses of genotypes B and C. Hepatology, 2001, 33: 218-223.
5Chu CJ, Hussain M, Lok AS, et al. Hepatitis B virus genotype B is associated with earlier HBeAg seroconversion compared with hepatitis B virus genotype C. Gastroenterology, 2002, 122: 1756-1762.
6Kao JH, Chen P J, Lai MY, et al. Genotypes and clinical phenotypes of hepatitis B virus in patients with chronic hepatitis B virus infection.J Clin Microbiol, 2002, 40: 1207-1209.
7Norder H, Hammas B, Lofdahl S,et al. Comparison of the amino acid sequences of nine different serotypes of hepatitis B surface antigen and genomic classification of the corresponding hepatitis B virus strains. J Gen Virol, 1992, 73(Pt 5): 1201-1208.
8Stuyver L, De Gendt S, Van Geyt C, et al. A new genotype of hepatitis B virus: complete genome and phylogenetic relatedness. J Gen Virol, 2000, 81(Pt 1): 67-74.
9Arauz-Ruiz P, Norder H, Robertson BH, et al. Genotype H: a new Amerindian genotype of hepatitis B virus revealed in Central America.J Gen Virol, 2002, 83(Pt 8): 2059-2073.
10Tanaka Y, Hasegawa I, Kato T, et al. A case-control study for differences among hepatitis B virus infections of genotypes A (subtypes Aa and Ae) and D. Hepatology, 2004. 40: 747-755.
