title: Letter: Breast-feeding and hepatitis B.
mesh_terms: D001942:Breast Feeding; D002353:Carrier State; D005260:Female; D006509:Hepatitis B / Q000635:transmission*; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D007223:Infant; D008895:Milk, Human / Q000276:immunology
chemical_list: D006511:Hepatitis B Antigens