title: e-Antigen and age in acute and chronic type B hepatitis.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000096:biosynthesis; D006511:Hepatitis B Antigens / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008297:Male
chemical_list: D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens; D006514:Hepatitis B Surface Antigens