[The delta agent].
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
D006511:Hepatitis B Antigens; D035923:Hepatitis delta Antigens
El agente delta.