Since you are new here, i'd suggest finding the Hungry Hippo's posts from the stickys and watch the videos he referenced. You will learn who their Chief Science Officer is - Kristen Comilla. She has presented on TED Talks and that video alone will hook you. She also played a major role in pushing the RMAT designation through US Congress. You will also see what they do and how they do it. It is some pretty amazing stuff.