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作者用狗作实验,在冠状动脉终末支和心尖支连接处的上方结扎左前降支,产生标准的心肌梗塞。结扎前记录心电图,以除外
The authors used dogs as an experiment to ligate the left anterior descending branch above the junction of the terminal branch of the coronary artery and the apical branch to produce a standard myocardial infarction. ECG before recording, except