title: Horizontal transmission of a hepatitis B virus surface antigen mutant.
authors.forename: W N
authors.initials: WN
authors.lastname: Chen
authors.forename: C J
authors.initials: CJ
authors.lastname: Oon
authors.forename: S
authors.initials: S
authors.lastname: Koh
mesh_terms: D000328:Adult; D018562:Disease Transmission, Infectious; D004200:Diseases in Twins; D005260:Female; D006509:Hepatitis B / Q000635:transmission* / Q000821:virology; D006514:Hepatitis B Surface Antigens / Q000235:genetics*; D006515:Hepatitis B virus / Q000235:genetics* / Q000276:immunology; D006801:Humans; D007231:Infant, Newborn; D009154:Mutation; D016133:Polymerase Chain Reaction / Q000379:methods
chemical_list: D006514:Hepatitis B Surface Antigens