Document Classification

Section Type: METHODS

Text: Five groups were arranged randomly to have 20 mg omeprazole q. d. for 28 days plus 750 mg amoxicillin b. i. d. for the first 10 days (omep-20-amox group, N = 22), 20 mg omeprazole b. i. d. for 28 days plus 750 mg amoxicillin b. i. d. for the first 10 days (omep-40-amox group, N = 22), 300 mg bismuth subsalicylate q. i. d. for 28 day, and 750 mg amoxicillin b. i. d., 500mg metronidazole t. i. d. for the first 7 days (triple therapy group, N = 25), 20 mg omeprazole q. d. for 28 days (omep-20 group, N = 22), or 150 mg ranitidine b. i. d. or 400 mg cimetidine b. i. d. for 28 days (H2-antagonist group, N = 21).