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作者对一组22～28岁的67名女性青年志愿者进行了24小时动态心电图监测。经询问病史、物理检查、X 线胸片、十二导联心电图及超声心动图检查,排除了心血管疾病和
The authors conducted 24-hour Holter monitoring of a group of 67 female young volunteers aged 22-28. After asking medical history, physical examination, X-ray, 12-lead ECG and echocardiography, excluding cardiovascular disease and