对于超过四十岁的健康者，我建议他们每二到五年做一次心电图检查，到年龄更大，或罹患冠状动脉疾病，或出现危险因素时增大检查频率。

• For healthy patients over age 40, I like to get a electrocardiogram (ECG or EKG) every 2-5 years, and more often if they are older or have existing or new risk factors for coronary artery disease.