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Clare Brown, chief executive of Infertility Network UK said: "This is obviously a good method of giving a women an indication of their current fertility in terms of how many viable eggs they have left.
Mr David Sturdee, a spokesman for the Royal College of Obstetricians and Gynaecologists, said: "It's a common concern. Some women are leaving it too late to start a family. One never knows who is going to be struck by an early menopause. "A test like this could be helpful, not just from a fertility point of view but also for older women who are having menstrual problems such as heavy periods and are thinking about whether to have a hysterectomy or wait for the menopause."