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Original Articles
Gastroenterology
Impact of previous metronidazole exposure on metronidazole-based second-line quadruple therapy for
Helicobacter pylori
infection
Gil Ho Lee, Kee Myung Lee, Sung Jae Shin, Joon Koo Kang, Choong-Kyun Noh, Jin Hong Kim, Sun Gyo Lim
Korean J Intern Med. 2020;35(5):1094-1103.