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多数溃疡穿孔的病因不明。但在十二指肠溃疡穿孔患者中吸烟者占84%~86%,且消化性溃疡患者中吸烟者与不吸烟者相比,其死亡
The cause of most ulcer perforations is unknown. However, 84% to 86% of patients with duodenal ulcer perforation, and peptic ulcer patients compared with non-smokers, the death