Methods: 589 cases of gangrenous perforated appendicitis were randomly divided into the drainage group and the non-drainage group.
方法：将589例坏疽穿孔性阑尾炎患者随机分为引流和非引流组。
Methods: 589 cases of gangrenous perforated appendicitis were randomly divided into the drainage group and the non-drainage group.
方法：将589例坏疽穿孔性阑尾炎患者随机分为引流和非引流组。
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