We investigated 1528 VDT women operators, menses and pregnancy in Shanghai. The result was found that the rate of irregular menstruation in exposure group is significant higher than that in control group ( P < 0.0001).

  • 对上海市1528名VDT操作女工月经和妊娠状况调查,发现月经周期、经期和经量异常发生率高于对照组,其中经期延长,经量增多具有统计学意义(P<0.0001)。

  • 互联网摘选 2025-03-01 14:18:19

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句