title: [A sero-epidemiological study of viral hepatitis A in a village].
mesh_terms: D002648:Child; D002675:Child, Preschool; D002681:China; D006506:Hepatitis A / Q000453:epidemiology*; D006508:Hepatitis Antibodies / Q000032:analysis*; D006507:Hepatovirus / Q000276:immunology*; D006801:Humans; D007223:Infant; D012424:Rural Population
chemical_list: D006508:Hepatitis Antibodies