title: Letter: Serum hepatitis in late pregnancy.
mesh_terms: D000293:Adolescent; D005260:Female; D005865:Gestational Age; D006509:Hepatitis B / Q000175:diagnosis*; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000175:diagnosis*; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis*; D013997:Time Factors
chemical_list: D006511:Hepatitis B Antigens