If the child has autism, they will never get stem cells until and after heavy metal removal. Because just remember, the body is like a house and if the house is burning, as in oxidative stress from heavy metal, a persistent organic pollutant or anything else like that, you are going to have to first put out the fire before you try to rebuild the house. If you do try to rebuild the house before you put the fire out, you are wasting your time, you are wasting your money and you are wasting your effort, and anybody who tells you to do so, they don't, either one, understand or, two, care about the outcome.