The female: male was 2:1 in the left bundle branch block and left anterior hemiblock groups and 1: 1 in the group with right bundle branch block.
女性与男性的比例在左束支
及左前半
2:1；在右束支1:1。
The female: male was 2:1 in the left bundle branch block and left anterior hemiblock groups and 1: 1 in the group with right bundle branch block.
女性与男性的比例在左束支及左前半2:1；在右束支1:1。
：
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