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冠心病是由于冠状循环改变引起冠状血流和心肌需求之间不平衡而导致的心肌损害。冠心病人的左室功能必然发生改变。评
Coronary heart disease is a result of myocardial damage caused by an imbalance between coronary blood flow and cardiac demand due to coronary circulation changes. Left ventricular function in patients with coronary heart disease is bound to change. Comment