title: [The delta agent].
mesh_terms: D003673:Defective Viruses / Q000276:immunology; D005455:Fluorescent Antibody Technique; D006509:Hepatitis B / Q000175:diagnosis / Q000473:pathology; D006511:Hepatitis B Antigens / Q000032:analysis; D006515:Hepatitis B virus / Q000276:immunology; D035923:Hepatitis delta Antigens; D006801:Humans; D008099:Liver / Q000473:pathology
chemical_list: D006511:Hepatitis B Antigens; D035923:Hepatitis delta Antigens
vernacular_title: El agente delta.