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体表心电图反映心房活动的 P 波对于心律失常的分析十分重要。但常规体表心电图在某些患者中不能满意地提供 P 波的信息。为解决这一问题,Luisadu 等(1953年)首
Surface ECG to reflect atrial activity P wave analysis of arrhythmia is very important. However, conventional surface ECG in some patients can not be satisfied with the provision of P wave information. To solve this problem, Luisadu et al. (1953) first