胶囊内镜与双气囊内镜对不明原因腹痛患者诊断价值的对比探讨
효낭내경여쌍기낭내경대불명원인복통환자진단개치적대비탐토
Comparison of diagnostic value of capsule endoscopy versus double balloon endoscopy for unexplained abdominal pain
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