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Detection of Helicobacter pylori and the A2143G/A2142G of the 23S rRNA gene on the basis of the dual-priming oligonucleotide-based multiplex polymerase chain reaction product in enrolled patients. M: 100 bp Marker; A: ClaR Marker; B: A2142G Positive Marker; C: A2143G Positive Marker; NC: Negative Marker; 1-54 : Samples.
