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患者男性,18岁,因心悸3天于1989年11月10日作检查。P波顺序出现,PP0.64~0.74s(94~81次/min)两种不同QRS伴不同PR时间:
Male patient, 18 years old, palpitations three days in November 10, 1989 for examination. P waves appear in sequence, PP0.64 ~ 0.74s (94 ~ 81 beats / min) two different QRS with different PR time: