101.   Bonnevie reported that the incidence rate of duodenal ulcer was four times higher than that of gastric ulcer in Copenhagen County.

102.   The similar distribution of the RFLP alleles in Japanese and whites could not explain the difference of the ratio of gastric to duodenal ulcers in these populations.

103.   Patients referred for upper gastrointestinal endoscopy because of suspected duodenal ulcers were invited to participate in the study.

104.   Thirty five patients with duodenal ulcer at endoscopy were finally included.

105.   The finding of enhanced fasting gastrin concentrations in H pylori positive subjects and in duodenal ulcer disease cannot easily be explained.

106.   It might be anticipated, therefore, that the pattern of gastrin and pepsinogen would differ in H pylori positive subjects without symptoms and in patients with duodenal ulcers.

107.   All patients were volunteers and all had had previous vagotomy for benign duodenal ulcer disease.

108.   Eradication of TH pylori lowered the plasma gastrin in the duodenal ulcer patients to values equivalent to the H pylori negative healthy volunteers.

109.   Helicobacter pylori infection is now recognised to be the main acquired factor in the pathogenesis of duodenal ulcer duodenal ulcer disease.

110.   There were eight smokers in the duodenal ulcer group and three in each of the other two groups.