title: Hepatitis B antigen and anitbody in maternal blood, cord blood, and amniotic fluid.
mesh_terms: D000653:Amniotic Fluid / Q000276:immunology*; D000914:Antibodies, Viral / Q000032:analysis; D001769:Blood; D002353:Carrier State; D005260:Female; D005315:Fetal Diseases / Q000517:prevention & control; D006386:Hemagglutination Tests; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D007122:Immunoelectrophoresis; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000276:immunology; D011863:Radioimmunoassay; D014470:Umbilical Cord / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D006511:Hepatitis B Antigens