triple and quadruple therapy for treatment of gastric H pylori infection which is better

published reviewed articles. If you could follow this structure please i need abstract, in" rel="nofollow">introduction about the disease and what is gastritis and peptic ulcer? the prevalence of the disease . how to diagnose ? current guidelin" rel="nofollow">ines for treatment. triple therapy what is it ? quadruple therapy what is it? discussion which is better ? conclusion