What in the world is happening to ulcers?

This publication has 4 references indexed in Scilit:

• Hospitalization and Mortality Rates for Peptic Ulcers: A Comparison of a Large Health Maintenance Organization and United States Data
  Gastroenterology, 1982
• RECENT CHANGES IN THE INCIDENCE OF DUODENAL AND GASTRIC ULCER1
  American Journal of Epidemiology, 1980
• Trends in hospital admissions and death rates for peptic ulcer in the United States from 1970 to 1978
  Gastroenterology, 1980
• What has been Happening to Duodenal Ulcer?
  Gastroenterology, 1974