title: Antivirals in chronic hepatitis B--problems of small clinical trials.
mesh_terms: D000998:Antiviral Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic / Q000379:methods*; D006509:Hepatitis B / Q000188:drug therapy*; D006801:Humans; D012107:Research Design; D013223:Statistics as Topic
chemical_list: D000998:Antiviral Agents