title: Familial clustering of hepatitis B infection.
mesh_terms: D000293:Adolescent; D001706:Biopsy; D001782:Blood Donors; D002353:Carrier State / Q000235:genetics; D005006:Ethnicity; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology / Q000209:etiology / Q000235:genetics* / Q000276:immunology / Q000473:pathology; D006510:Hepatitis B Antibodies / Q000032:analysis; D006511:Hepatitis B Antigens; D006801:Humans; D008099:Liver / Q000473:pathology; D008297:Male; D008431:Maternal-Fetal Exchange; D009518:New York; D011247:Pregnancy
chemical_list: D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens