title: The defective nature of hepatitis delta virus.
authors.forename: T S
authors.initials: TS
authors.lastname: Yen
mesh_terms: D000956:Antigens, Viral / Q000032:analysis; D003698:Hepatitis Delta Virus / Q000235:genetics* / Q000276:immunology*; D006801:Humans; D012367:RNA, Viral / Q000032:analysis; D014771:Virion / Q000276:immunology
chemical_list: D000956:Antigens, Viral; D012367:RNA, Viral