We are not going to get the critical answers, the answers that are so central to recovery of function for patients, unless we proceed across all of these fronts,

[Dr. Ira Black, chairman of the neuroscience department at the Robert Wood Johnson Medical School in New Jersey, has studied stem cells for years. He's co-founder of the Stem Cell Institute of New Jersey.] What the South Korean researchers have done is a real breakthrough, ... But there is a tremendous amount of work that needs to be done. This ... requires intense scientific scrutiny, evaluation and experimentation.

I think what we're all learning now is that stem cells, regardless of source, are simply far more flexible and consequently far more useful than we had ever dreamt,

This is just the first level.

Recent work using neural stem cells has indicated that stem cell transplantation to the injured spinal cord may help recovery, so ... this is really occurring at a very encouraging time and we hope that these particular stem cells will also make a contribution,

I'm still looking for answers, ... and still wondering why.