title: Hepatitis B virus mutants associated with hepatitis B surface antigen loss: chicken or egg?
authors.forename: Tai-Chung
authors.initials: TC
authors.lastname: Tseng
authors.forename: Jia-Horng
authors.initials: JH
authors.lastname: Kao
mesh_terms: D005814:Genes, Viral / Q000235:genetics*; D006509:Hepatitis B / Q000188:drug therapy*; D006514:Hepatitis B Surface Antigens / Q000097:blood*; D006515:Hepatitis B virus / Q000235:genetics*; D006801:Humans; D016898:Interferon-alpha / Q000627:therapeutic use*; D008297:Male; D009154:Mutation / Q000235:genetics*; D011092:Polyethylene Glycols / Q000627:therapeutic use*
chemical_list: D006514:Hepatitis B Surface Antigens; D016898:Interferon-alpha; D011092:Polyethylene Glycols