I think this is as big as the first heart transplant, if not bigger.
link:
http://www.theguardian.com/science/2...eering-surgery
"The 38-year-old, who is believed to be the first person in the world to recover from complete severing of the spinal nerves, can now walk with a frame and has been able to resume an independent life, even to the extent of driving a car, while sensation has returned to his lower limbs."
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