1. Atherton JC (2006) The pathogenesis of Helicobacter pylori-induced gastro-duodenal diseases. Annu Rev Pathol 1:63–96
2. Marshall BJ (1995) Epidemiology of H. pylori in Western countries. In: Hunt RH, Tytgat GNJ (eds) Helicobacter pylori—basic mechanisms to clinical cure. Kluwer, Dodrecht, pp 75–84
3. Pounder RE, Ng D (1995) The prevalence of Helicobacter pylori infection in different countries. Aliment Pharmacol Ther 9(Suppl 2):33–39
4. Graham DY, Alpert LC, Smith JL et al (1988) Iatrogenic Campylobacter pylori infection is a cause of epidemic achlorhydria. Am J Gastroenterol 83:974–980
5. Morris A, Nicholson G (1987) Ingestion of Campylobacter pyloridis causes gastritis and raised fasting gastric pH. Am J Gastroenterol 82:192–199