a study was conducted in sydney , australia to investigate whether the use of some nonaspirin nonsteroidal anti-inflammatory ( anti-arthritic ) drugs was associated with gastric ulcer in patients who had had neither a gastric nor a duodenal ulcer diagnosed previously ( i.e. , in new cases of peptic ulcer ) , and whether the use of anti-arthritic drugs , aspirin , acetaminophen , and cigarettes was influenced by the diagnosis of a peptic ulcer -- either gastric or duodenal .
C0038358
gastric ulcer
C0038351
gastric