Stem Cells - ClarificationNot to belabour the point....but we need to clarify what we are talking about here... neural stem cell proliferation was discovered in 1990 not the 1970's. These clinical trials are based on the subsequent proof of principal studies confirmed in the last decade so we are not talking about a 40 year lag as your post suggests. Also, EPO is secondary to hCG in these trials - hCG is the primary agent that promotes mobilization of neural stem cells. Lastly, this therapy involves mobilizing resident stem cells, not transplantation.