慢性萎缩性胃炎患者14C-尿素呼气试验检测Hp特异性及敏感性观察
만성위축성위염환자14C-뇨소호기시험검측Hp특이성급민감성관찰
The Sensitivity and Specificity Observation on 14C-Urea Brenth Test in Diagnosing H.pylori in the Case of Chronic Atrophic Gastritis
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