METHODS	They were randomized to receive the following 7-day therapy : 1 , moxifloxacin 400 mg q.d. , esomeprazole 20 mg b.i.d. , and amoxicillin 1 g b.i.d. ; and 2 , esomeprazole 40 mg b.i.d. , tripotassium dicitrate bismuthate 300 mg q.i.d. , metronidazole 500 mg t.i.d. , and tetracycline 500 mg q.i.d. Eradication rates , drug compliance , and side-effect rates of each group were evaluated .\