title: Hepatitis B: significant advances and unmet challenges.
authors.forename: Daniel S
authors.initials: DS
authors.lastname: Pratt
mesh_terms: D000998:Antiviral Agents / Q000627:therapeutic use*; D006509:Hepatitis B / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology; D006514:Hepatitis B Surface Antigens / Q000276:immunology; D006515:Hepatitis B virus / Q000276:immunology; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D009017:Morbidity / Q000639:trends; D017410:Practice Guidelines as Topic; D014481:United States / Q000453:epidemiology
chemical_list: D000998:Antiviral Agents; D006514:Hepatitis B Surface Antigens