pylori eradication was analysed. Sixty‐three H. pylori‐positive, chronic duodenal ulcer
patients were studied after the successful eradication of bacteria in the period from 1990 to
1993. H. pylori eradication was obtained by triple antimicrobial regimens (colloidal bismuth
subcitrate, amoxycillin, and metronidazole) applied for at least 14 days. The criteria for
eradication were the absence of bacteria from two antral and two body of stomach biopsies …