Experts say the findings could lead to a simple new predictive test within several years. Here's our health correspondent Branwen Jeffreys.

专家称这个发现会在几年内促成一项简单的新预测试验，卫生记者Branwen Jeffreys报道。

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The BBC's Health Correspondent Branwen Jeffreys said Mr Hunt will have a steep learning curve, and little time to establish his credibility in one of the most taxing roles in the cabinet.

BBC: Mixed reception of Hunt as new health secretary