实验室人员验了血。

The lab technician did some blood tests.

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比较治疗前后左室射血分数、心功能等。

Left ventricular ejection fraction before and after treatment, heart function.

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在女性，低的左室射血分数规定为61%，而男性为55%。

A low LVEF was defined as below 61% in women and below 55% in men.

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在女性，低的左室射血分数规定为61%，而男性为55%。

A low LVEF was defined as below 61% in women and below 55% in men.

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