目的总结分析隐源性消化道出血的病因，探讨不同检查方法的诊断价值。
Objective To analysis of the cause and diagnosis of obscure gastrointestinal bleeding (OGB) and evaluate the diagnostic value of different methods for OGB.
目的总结分析隐源性消化道出血的病因，探讨不同检查方法的诊断价值。
Objective To analysis of the cause and diagnosis of obscure gastrointestinal bleeding (OGB) and evaluate the diagnostic value of different methods for OGB.
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