5.Methods: Population studies on D18S865,D18S1364 and D18S535 were carried out in a sample of 184 unrelated South Zhejiang Han individuals using PCR followed by PAGE and silverstain detection.
6.Methods HpSA in stool specimens of 63 patients were detected by EIA. 61 of the 63 patients also underwent 13 C Urea breath test( 13 C UBT). The tissue samples of 31 patients were obtained endoscopically and examined with histologic technique (Warthin Starry silverstain).