title: Importance of vacAs1 gene in gastric cancer patients infected with cagA-negative Helicobacter pylori.
authors.forename: Ana Paula Santos
authors.initials: AP
authors.lastname: Do Carmo
authors.forename: Silvia Helena Barem
authors.initials: SH
authors.lastname: Rabenhorst
mesh_terms: D000942:Antigens, Bacterial / Q000096:biosynthesis / Q000235:genetics*; D001426:Bacterial Proteins / Q000096:biosynthesis / Q000235:genetics*; D005260:Female; D016481:Helicobacter Infections / Q000150:complications / Q000473:pathology; D016480:Helicobacter pylori / Q000235:genetics* / Q000472:pathogenicity; D006801:Humans; D008297:Male; D013274:Stomach Neoplasms / Q000382:microbiology*
chemical_list: D000942:Antigens, Bacterial; D001426:Bacterial Proteins; C074689:VacA protein, Helicobacter pylori; C080866:cagA protein, Helicobacter pylori