Document Classification

Section Type: METHODS

Text: One hundred and fifty patients with duodenal ulcer and H. pylori infection were randomly assigned to one of three treatment groups : omeprazole 20 mg b. d., amoxicillin 1000 mg b. d. and furazolidone 100 mg b. d. for 14 days (OAF) ; omeprazole 20 mg b. d., amoxicillin 1000 mg b. d., furazolidone 100 mg b. d. and bismuth subcitrate 240 mg b. d. for 14 days (OABF1) ; or omeprazole 20 mg b. d., amoxicillin 1000 mg b. d., furazolidone 200 mg b. d. and bismuth subcitrate 240 mg b. d. for 14 days (OABF2).