title: [Significance of eAg in HBsAg positive families].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis*; D002648:Child; D005260:Female; D006509:Hepatitis B / Q000235:genetics* / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006515:Hepatitis B virus / Q000276:immunology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral; D006514:Hepatitis B Surface Antigens