Globally, there was an increasing trend of antibiotic resistance. 38 In patients after eradication failure twice, the antibiotic resistance to clarithromycin, levofloxacin, and metronidazole is higher, with one study reporting resistance rates above 80%. 32 Therefore, clarithromycin should only be used in rescue therapy for patie
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Rescue therapy for refractory <i>Helicobacter pylori</i> infection: current status and future concepts.
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