title: [A long-term sero-epidemiological survey on mother-infant transmission of hepatitis B viruses].
mesh_terms: D000328:Adult; D002353:Carrier State / Q000635:transmission; D005260:Female; D005500:Follow-Up Studies; D006509:Hepatitis B / Q000635:transmission*; D006513:Hepatitis B e Antigens / Q000032:analysis; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious
chemical_list: D006513:Hepatitis B e Antigens