background:     purpose:     methods:     results:     conclusion:     key words:     pbl, lecture based method, education, frequent quizzes the variables such as changing the way of learning, using different methods in teaching, showing scientific films in class or, as a whole, active learning have significant effects on the results of final examination. the results showed that by changing the...

introduction: standard dose regimens for eradicating helicobacter have side effects, so some patients are not able to continue their treatment. this study was done to evaluate two regimens of tetracycline and metronidazole in eradicating helicobacter pylori with particular attention to frequency of side effects of two therapies. materials & methods: a prospective randomized controlled trial was...