title: A tough controversy to stomach.
authors: Cassandra
authors: C
authors: Willyard
mesh_terms: D000230:Adenocarcinoma / Q000209:etiology / Q000382:microbiology; D000906:Antibodies / Q000502:physiology; D000942:Antigens, Bacterial / Q000235:genetics / Q000276:immunology; D001249:Asthma / Q000097:blood / Q000276:immunology / Q000517:prevention & control; D001426:Bacterial Proteins / Q000235:genetics / Q000276:immunology; D001471:Barrett Esophagus / Q000209:etiology / Q000382:microbiology; D015415:Biomarkers / Q000097:blood; D034462:Dissent and Disputes; D016481:Helicobacter Infections / Q000097:blood / Q000150:complications* / Q000276:immunology / Q000473:pathology; D016480:Helicobacter pylori / Q000235:genetics / Q000276:immunology / Q000472:pathogenicity / Q000502:physiology*; D006801:Humans; D013274:Stomach Neoplasms / Q000209:etiology / Q000382:microbiology; D013276:Stomach Ulcer / Q000209:etiology* / Q000382:microbiology
chemical_list: D000906:Antibodies; D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D015415:Biomarkers; C080866:cagA protein, Helicobacter pylori