内科治疗一年以后，三根主要冠状动脉分支的69个结石无明显改变。

After 1 year of medical treatment 69 stones of the 3 major coronary branches showed no significant change.

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方法：结扎家兔冠状动脉的不同分支制造急性心肌梗死模型。

Method: By ligating the different branch of coronary artery of rabbits, we made the AMI model.

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结论：提示结扎冠状动脉第二和第三分支之间是制作犬急性心肌缺血模型比较理想的方法。

Conclusion: It is suggested that ligating coronary artery between the second and the third branches is best method of making acute myocardial ischemia dog model.

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