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近年来,对V_1导联P波终末电势(简称Ptf V_1)的临床意义,已引起人们的重视,为观察Ptf V_1异常者的左心功能状况,我们
In recent years, the clinical significance of the P-wave terminal potential (referred to as Ptf V_1) V_1 lead, has drawn people’s attention, in order to observe the left ventricular function in patients with abnormal Ptf V_1, we