Paralysed man walks again

A paralysed man can walk again after receiving revolutionary treatment which one of the British scientists responsible hailed as a breakthrough "more impressive than a man walking on the Moon" - although others urged caution. Darek Fidyka was paralysed from the chest down, but can now walk using a frame after nerve cells from his nose were transplanted into his severed spinal column in Poland, according to research published Tuesday in the journal Cell Transplantation.

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