Objective: To explore the role of rest electrocardiogram in diagnosis of coronary heart disease.
目的：探讨静态心电图对诊断冠心病的临床价值。
Objective To explore the application value of high frequency electrocardiogram in the diagnosis of coronary heart disease.
目的：探讨高频心电图在冠心病诊断中的应用价值。
Objective: To study the significance and application value of ultrasound in the diagnosis of coronary heart disease.
目的：研究超声诊断冠心病的意义及应用价值。
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