New concepts in viral hepatitis.
D006506:Hepatitis A / Q000209:etiology; D006509:Hepatitis B / Q000209:etiology; D006511:Hepatitis B Antigens / Q000276:immunology; D006525:Hepatitis, Viral, Human / Q000209:etiology* / Q000276:immunology / Q000517:prevention & control; D006801:Humans; D065227:Transfusion Reaction
D006511:Hepatitis B Antigens