Viral hepatitis: an update.
D006506:Hepatitis A / Q000473:pathology; D006509:Hepatitis B / Q000473:pathology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006525:Hepatitis, Viral, Human / Q000473:pathology*; D006801:Humans
D006514:Hepatitis B Surface Antigens