There are plenty of studies showing that people with autism are more likely to retain heavy metals, due to altered mineral/metal metabolism. Not to mention my own lab results taken 'before' and 'after', and the symptoms that went away.
See if you can find a link to a study that hasn't been long disproved.
The medical community officially rejects chelation as a treatment for autism. This is true in multiple countries and via multiple organisations.
People with autism generally can not excrete heavy metals the way a NT can. I've also read a lot about people with autism retaining the heavy metals. I think that is why some do chelation to rid the body of them. Some moms I know think the vaccines are the issue due to their childs inability to rid the body of the metals.
This one has definitely been disproven - there have been 14 studies so far showing no link between autism and vaccines. People here that vaccines and autism are related by celebrities, or by word of mouth - not from medical professionals.