In Ukraine there's a company called EmCell who has been using fetal stem cells for treating a wide range of diseases and autoimmune issues for the last 30 years; research for 30 years, clinical practice 25 years.
There's a free documentary on the clinic that can be watched that explains why they believe it's safe to inject fetal stem cells that are 7-12 weeks old into anyone; there are 50 million legal abortions done annually around the world, and that tissue is otherwise thrown out and considered bio-waste.
There are a number of diseases that aren't curable in North America, however based on their data/experience that it appears that if treated early enough before disease progression damages the healing mechanisms of the body, that different diseases can be not only stopped but also regress (heal/be cured).