Viral hepatitis: new clinical, epidemiological and immunological concepts.
D003937:Diagnosis, Differential; D006506:Hepatitis A / Q000175:diagnosis / Q000209:etiology / Q000276:immunology; D006509:Hepatitis B / Q000175:diagnosis / Q000209:etiology / Q000276:immunology; D006515:Hepatitis B virus; D006801:Humans