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Representative results of the LAMP analysis for the presence of H pylori and genetic mutations in 23S rRNA in gastric biopsy samples. Endoscopic biopsy specimens of gastric mucosa were dissolved in DNA extraction buffer for 10 min. Isolated DNA (2 μL) was added to each tube and analyzed with primers for H pylori and the 2143G and 2182C mutations, and color changes were observed after a 30‐min reaction at 63°C
