1. Peptic ulcer;Langman, M.J.S.,1979
2. Epidemiology of peptic ulcer in Australia. A study based on government statistics in four states;Hugh, T.B.; Coleman, M.J.; McNamara, M.E.; Norman, JR, Howell; C.,1984
3. Peptic ulcer in India and Bangladesh;Tovey, F.I.;Gut,1979
4. Campylobacter pylori and peptic ulcer disease;Graham, D.Y.;Gastroenterology,1989
5. Helicobacter pylori infection and the risk of gastric carcinoma;Parsonnet, J.; Friedman, G.D.; Vandersteen, D.P.; Chang, Y.; Vogelman, J.H.; Orentreich, N.;N Engl J Med,1991