Objective: to probe into the prevention and cure for complications of benign and malignant upper digestive tract stricture and its causes.
前言：目的：探讨扩张治疗上消化道良恶性狭窄并发症的成因及防治。
Objective: to probe into the prevention and cure for complications of benign and malignant upper digestive tract stricture and its causes.
前言：目的：探讨扩张治疗上消化道良恶性狭窄并发症的成因及防治。
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