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Kalach, Nicolas, Michel Bergeret, Pierre Henri Benhamou, Christophe Dupont, und Josette Raymond. High Levels of Resistance to Metronidazole and Clarithromycin in Helicobacter Pylori Strains in Children. American Society for Microbiology, 2001.

Kalach, Nicolas, et al. High Levels of Resistance to Metronidazole and Clarithromycin in Helicobacter Pylori Strains in Children. American Society for Microbiology, 2001.