gastric ulcers
The prevalence of gastric ulcers was 32.6% in patients with a       history of gastric ulcer but only 13.5% in patients with no GI history (previous        gastric ulcer, duodenal ulcer, or upper GI hemorrhage).
The prevalence of  @SUBJECT$  was 32.6%  @PREDICAT$   @OBJECT$  with a       history of gastric ulcer but only 13.5% in patients with no GI history (previous        gastric ulcer, duodenal ulcer, or upper GI hemorrhage).