It's called stem cell tourism. If it sounds too good to be true, then it's often too good to be true. These can be very dangerous. Some of these patients have died. They have sprouted tumours and have had other adverse effects.
This has been an area of active study for many years in Canada, led by the Stem Cell Network. We're internationally known for this type of research and the dissemination of the dangers of these sorts of clinics.