If you would be so kind as to give me your concerns or "red flags" as you put it, so I know your point of view I'd appreciate it.
It's good to know history as long as you don't live there. I believe that people can learn from there mistakes and make progress.
I also believe that Dr. Koos has done everything that he has outlined so far with BMSN and Regen. So I really don't see red flags at all, but like I said, I would like to see your point of view.