title: Antibody to Campylobacter pylori in families of index children with gastrointestinal illness due to C pylori.
mesh_terms: D000293:Adolescent; D000907:Antibodies, Bacterial / Q000032:analysis*; D002167:Campylobacter / Q000276:immunology*; D002169:Campylobacter Infections / Q000235:genetics*; D002648:Child; D005756:Gastritis / Q000235:genetics*; D006801:Humans
chemical_list: D000907:Antibodies, Bacterial