Vaccination against hepatitis A.
Katz
S L
SL
D002648:Child; D002675:Child, Preschool; D006506:Hepatitis A / Q000517:prevention & control*; D006507:Hepatovirus / Q000276:immunology*; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D014611:Vaccination / Q000592:standards*; D014761:Viral Hepatitis Vaccines / Q000008:administration & dosage*
D014761:Viral Hepatitis Vaccines