title: The nature of nuclear ribonucleoprotein particles containing virus-specific RNA.
mesh_terms: D000256:Adenoviridae / Q000276:immunology; D000818:Animals; D000936:Antigen-Antibody Complex; D002467:Cell Nucleus / Q000032:analysis*; D002478:Cells, Cultured / Q000032:analysis; D002499:Centrifugation, Density Gradient; D006801:Humans; D007106:Immune Sera; D066298:In Vitro Techniques; D008099:Liver / Q000276:immunology; D012367:RNA, Viral / Q000032:analysis*; D051381:Rats; D014764:Viral Proteins / Q000032:analysis*; D005719:gamma-Globulins / Q000032:analysis
chemical_list: D000936:Antigen-Antibody Complex; D007106:Immune Sera; D012367:RNA, Viral; D014764:Viral Proteins; D005719:gamma-Globulins