Stomach ulcer More than 70 percent of duodenalstomach ulcers are caused a bacterium called helicobacter pylori.

  • 胃溃疡有70%以上的十二指肠溃疡和胃溃疡是由幽门螺杆菌引起的.

  • 网络文摘精选 2025-01-18 11:16:51

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