Professor Simon Kay, a consultant plastic surgeon at the Leeds hospital, led the operation to carry out the UK's first hand transplant.
He has spoken about the procedure and said a week after the transplant "it's looking very good".
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Three Court of Appeal judges are analysing the latest stage of a life-support treatment dispute.
Ms Markle joined Harry and William at services in London to honour the fallen.
Thunder and hail at times across the UK. Showers becoming confined to the northwest overnight.