title: Transplacental and postnatal transmission of the hepatitis-associated antigen.
mesh_terms: D004200:Diseases in Twins; D005260:Female; D006506:Hepatitis A / Q000151:congenital; D006511:Hepatitis B Antigens; D006801:Humans; D008111:Liver Function Tests; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious
chemical_list: D006511:Hepatitis B Antigens