Day Fourteen: Ovulation
28ish Days Later
00:00
Is There a Ticking Down Clock?
Evelyn and others work in this area is controversial. It's a big deal, going against decades of received wisdom. Other groups have tried and failed to isolate these cells. But if it's true, it could be a huge step forward for women and girls who have to undergo fertility damaging treatment before they've had a chance to have a family.
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