title: Absence of circulating interferon in acute viral hepatitis.
mesh_terms: D006506:Hepatitis A / Q000276:immunology; D006526:Hepatitis C / Q000276:immunology; D006525:Hepatitis, Viral, Human / Q000276:immunology*; D006801:Humans; D007372:Interferons / Q000097:blood*
chemical_list: D007372:Interferons