Wow this is an amazing story!

LEt's hope your friend will survive and get better soon.
Amazing what medical science can do at this point in time to cure people from cancers or other immune diseases.

You and youre friend are heroes and pioneers for the further development of stemcell therapy, we all should be thankful to you.
who know sone day whe might need the same kind of transplantation.

Cheers and enjoy you day!