METHODS	The patients were randomized to one-week standard triple therapy ( omeprazole 20 mg bid , clarithromycin 500 mg bid , and amoxicillin 1000 mg bid ; OCA group , n = 79 ) ; two weeks of pre-treatment with probiotics , containing 3 10 ( 7 ) Lactobacillus acidophilus per day , prior to one week of triple therapy ( POCA group , n = 78 ) ; or one week of triple therapy followed by two weeks of the same probiotics ( OCAP group , n = 77 ) .\