Objective To investigate the clinical features and summarize treatment experience for patients with aortoenteric fistula ( AEF ) .

目的探讨腹主动脉肠 瘘 的临床表现特征和治疗经验.

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In this paper, the mechanism of action of excimer laser ( AeF: 193 nm .8 ns ) and the photoablation model on cornea are analysed.

本文分析了 193nm 准分子激光对角膜的蚀除机理及其对角膜的蚀除模型.

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Conclusion To evaluate AEF with Doppler echocardiograph is noninvasive and easy and accurately.

结论　多普勒超声心动图测定左心房射血力,无创而易行,能够较好地评价左心房功能.

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