Regarding stem cells, I know the previous posters are speaking of REAL doctors and hospitals, but BEWARE of the fraudsters out there who are preying upon the desperate...
Sadly, a high school classmate of mine and her boyfriend fled to South Africa in an attempt to avoid prosecution on 51 counts of fraud by a US Federal grand jury.
Over many years, she and her boyfriend were injecting people in the gut with cord blood stem cells, which were for lab research only. Neither of these people had any medical training! Charging tens of thousands of dollars for a treatment, these connivers swindled millions and millions of dollars from hundreds, perhaps thousands, of people.
A doctor in the UK was just charged in a very similar scam, I believe.
Google "Steven van Rooyen and Laura Brown." It is terribly sad, what they have been doing. I hope there is a special place in hell for people like this.