200 cases with tractus alimentarius symptoms were examined by 13C-urea breath test.The result of 13C-urea breath test has no differences between HPUT,bacterial culture and PCR tests.

• 本文对200例具有消化道症状的患者进行13C尿素呼气试验,结果13C尿素呼气试验与HPUT、细菌培养、PCR无明显差异;