Hepatitis B antigen and antibodies in chronic hepatitis.
D000914:Antibodies, Viral / Q000032:analysis*; D002908:Chronic Disease; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D008137:Longitudinal Studies; D011446:Prospective Studies
D000914:Antibodies, Viral; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens