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Saliva test for early birth risk 唾液检测可检测出早产

A simple saliva test could help spot which expectant women are likely to go into premature labour, experts believe.

专家相信,一个简单的唾液测试就可以确定预产期母亲是否会早产。

It is still unknown why about 40,000 UK women a year give birth <a href=prematurely" width="226" border="0" src="/upimg/090722/4_070417_1.jpg" />