Letter: Vertical transmission of hepatitis B and breast-feeding.
D001942:Breast Feeding; D002353:Carrier State; D005260:Female; D006509:Hepatitis B / Q000635:transmission*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology*; D013624:Taiwan