Please note that the reference to ef in this Privacy Policy covers all entities within the ef group of companies.
请注意，在本隐私政策的参考ef包括EF组的公司内的所有实体。
Statistical analyses were carried out to compare left ventricular regional ef between the LVA group (before operation and 4 months after operation) and the control group.
利用统计方法对比分析l VA组(术前、术后4个月)与对照组左心室局部EF。
Left atrial diameter (LAD) and ejection fraction (ef) of each group were measured by echocardiography respectively.
同时应用心脏超声测量各组病人左心房内径以及左心室射血分数。
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