Paralyzed woman walks again after stem cell therapy:
"A South Korean woman paralyzed for 20 years is walking again after scientists say they repaired her damaged spine using stem cells derived from umbilical cord blood.
Hwang Mi-Soon, 37, had been bedridden since damaging her back in an accident two decades ago.
Last week her eyes glistened with tears as she walked again with the help of a walking frame at a press conference where South Korea researchers went public for the first time with the results of their stem-cell therapy."