目的：总结如何提高上消化道大出血的诊断水平，改善处理对策，避免误诊误治。
Objective: to summarize the ways of improving the diagnosis and treatment of hemorrhage in upper digestive tract so as to avoid them.
目的：总结如何提高上消化道大出血的诊断水平，改善处理对策，避免误诊误治。
Objective: to summarize the ways of improving the diagnosis and treatment of hemorrhage in upper digestive tract so as to avoid them.
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