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丹麦对5,645名44～53岁的妇女的观察结果,表明吸烟可使更年期提前。这个研究规定停经超过6个月即作为更年期后者。
The Danish observation of 5,645 women aged 44-53 shows that smoking leads to menopause. This study provides menopause for more than 6 months as the latter.