Po-sitive rates of HP in duodenal ulcer dis-ease were 81.5%, 24.6% and 7.2% at thepyloric-antral area and at the near anddistant mucosa of duodenal ulcer, respec-tively.

• 十二指肠溃疡病的窦部粘膜81.；5%25；球部溃疡旁粘膜24