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And allow the nerve cells to actually become less diseased and the nerve cells begin to look healthy. >> its worth pointing out is that john is going into the operating room. the question theyre really trying to answer, the most important question hat this point, is are these cells safe? is anything bad going to happen as a result of this operation? getting stem cells into johns spinal cord is not easy. it took this surgeon, dr. nick boulis years to design this platform to stabilize the needle t...