Looking for a plentiful, easily accessible source of adult stem cells? Try looking at your hair. More precisely, look at the follicle cells so beloved by the CSI franchise. Evidently, those cells harvested from a mouse have been effective in healing peripheral nerve damage in the same mouse. The beauty of this method is that it is the same genetic material, hence no issues of immuno-rejection.
Nice to know that I have plenty of follicular stem cells to spare. Particularly if more than the stuff on the head is useful.