Universal hepatitis B childhood vaccinations.
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D002648:Child; D002675:Child, Preschool; D006509:Hepatitis B / Q000517:prevention & control*; D017325:Hepatitis B Vaccines / Q000008:administration & dosage* / Q000191:economics; D006801:Humans; D007223:Infant; D014481:United States
D017325:Hepatitis B Vaccines