Daybreak's Health Editor Dr Hilary Jones has said that more research is needed before scientists can say for certain that frozen embryos are more likely to better IVF pregnancies.
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Ed Miliband has pledged to give zero-hours workers the right to convert their contract into a regular job after three months.
More than 100 leaders have declared their support for a Conservative-led government, warning a Labour would "put the recovery at risk".
The winds will remain strong tonight and in the north showers will continue, which may turn wintry over high ground.