title: [Study of drug-resistant spontaneous mutation in hepatitis B virus  gene].
authors.affiliation: Tanggu Infectious Hospital, TianJin 300454, China. lhm19691121@126.com
authors.forename: Hong-mei
authors.initials: HM
authors.lastname: Lou
authors.forename: Xi-tao
authors.initials: XT
authors.lastname: Zhong
authors.forename: Zhi-guo
authors.initials: ZG
authors.lastname: Li
authors.forename: Qing-wang
authors.initials: QW
authors.lastname: Li
authors.forename: Zhu
authors.initials: Z
authors.lastname: Liu
authors.forename: Lin-feng
authors.initials: LF
authors.lastname: Yin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004252:DNA Mutational Analysis; D004279:DNA, Viral / Q000235:genetics; D024882:Drug Resistance, Viral / Q000187:drug effects* / Q000235:genetics; D005260:Female; D006515:Hepatitis B virus / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D019694:Hepatitis B, Chronic / Q000235:genetics / Q000821:virology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D055815:Young Adult
chemical_list: D004279:DNA, Viral