I saw a program on tv that followed a quad to China for his stem cell surgery.
In the story many others have flocked to China includng kids w/parents hoping to cure their Cerebral Palsy (as my son who has lived with for 27yrs).
Well the story ended exposing a huge fraud.
Yes the stem cell surgery was done but there was no significant improvements just a whole lot of dissapointed people.
So number one, my son will not use fetal stem cells for his own health care and two I have to see these cases with my own eyes and lots of them before I get any hopes of a cure.
Besides 27yrs later we have put our hope into eternal life.
The odds are better IMO.
You don't talk about the level of your son's involvement, but I suspect it's more involved than my daughter's. Prayers for you and yours. I haven't walked your path, but have been close enough to know it's tough.