Immunizing infants at high risk of hepatitis B.
D005260:Female; D006509:Hepatitis B / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D007114:Immunization / Q000009:adverse effects; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000517:prevention & control*; D011247:Pregnancy; D012306:Risk