At first, the heart is a simple tube that soon begins to beat regularly. Then it grows it grows so fast that there is no room for it to become longer inside the embryo.

起初，心脏只是一个简单而可以规律的搏动的管子，由于它长的实在太快以至于在胚胎里没有它变长的空间。

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The baby was eventually delivered at home at 14:00, but no heart beat was found and the infant was taken by helicopter to Raigmore where staff declared the girl dead.

BBC: NHS Highland apologises to dead girl's family

Lawyers representing Brook's parents found midwives failed to correctly monitor her heart rate or call a doctor when no heart beat could be found.

BBC: Russells Hall hospital baby death caused by staff mistakes