Patients hold out hope for future stem cell therapy

Having spent 23 years in a wheelchair, Wall Street analyst Henry Stifel keeps a close eye on spinal cord research. And he says the latest scientific scandal in South Korea has not dimmed his hope that &to=' target=_blank>stem cells may one day help people like him.

"Some research was discredited. It doesn't discredit all the research that's been achieved," said Stifel, who is quadriplegic.

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