绝经年限 meaning in Chinese

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Relationship of years since menopause to bone mineral density of proximal femur in postmenopausal women of shenyang
沈阳地区绝经后妇女绝经年限与股骨近端骨密度的关系分析
Abstract objective ： investigating the ralation between th e age , duration ofmenopause and pathologic type in postmenopausal uterus bleeding
摘要目的：探讨绝经后子宫出血的年龄，绝经年限与病理类型的关系。
The trial focusing on endometrial effects ealuated 3397 women with no significant differences across study groups in factors such as mean age , body mass index , or years since last menstrual period
研究子宫内膜效应的这项试验评估了3397例妇女，各研究分组之间诸如平均年龄、体重指数或绝经年限没有显著差异。