title: Antibody to hepatitis A antigen in children.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis; D002675:Child, Preschool; D006386:Hemagglutination Tests; D006506:Hepatitis A / Q000276:immunology*; D006801:Humans; D007104:Immune Adherence Reaction; D007223:Infant; D009519:New York City; D014505:Urban Population
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral