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Amplification of partial 501 bp hsp60 gene with specific nested primer for H. pylori in antral biopsies. Lanes 1, 18, 19, and 36: molecular marker (100 bp); lanes 2 and 20: positive control; lanes 3 to 17: gDNA from antral biopsies before treatment; and lanes 21 to 35: gDNA from antral biopsies after treatment.
