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Are there any differences betzeen ranitidin or famotidin plus dual antibiotic combination in patients with Helicobacter pylori positive nonulcer dyspepsia . Ann Med Res [Internet]. 2021 May 25 [cited 2025 Oct. 15];7(2):0100-6. Available from: http://annalsmedres.org/index.php/aomr/article/view/2805