title: Pre-S deletion mutants co-exist with wild-type virus at low viral replication stage in Singapore chronic hepatitis B virus carriers.
authors.affiliation: Department of Clinical Research, Singapore General Hospital, Singapore 169608, Republic of Singapore. gcrcwn@sgh.com.sg
authors.forename: Wei Ning
authors.initials: WN
authors.lastname: Chen
authors.forename: Chong Jin
authors.initials: CJ
authors.lastname: Oon
mesh_terms: D000328:Adult; D000595:Amino Acid Sequence; D001483:Base Sequence; D002353:Carrier State / Q000821:virology; D004279:DNA, Viral / Q000235:genetics / Q000378:metabolism; D006514:Hepatitis B Surface Antigens / Q000235:genetics*; D006515:Hepatitis B virus / Q000737:chemistry / Q000235:genetics*; D019694:Hepatitis B, Chronic / Q000097:blood / Q000821:virology*; D006801:Humans; D008969:Molecular Sequence Data; D009154:Mutation; D009693:Nucleic Acid Hybridization; D016133:Polymerase Chain Reaction; D012846:Singapore; D014779:Virus Replication / Q000235:genetics*
chemical_list: D004279:DNA, Viral; D006514:Hepatitis B Surface Antigens