I guess doctors these days never read PubMed anymore. Autism. On PubMed.
"A possible central mechanism in autism spectrum disorders ...and the synergistic effects of other environmental toxins".
http://www.ncbi.nlm.nih.gov/pubmed/19284184
"In addition, a number of environmental neurotoxins, such as FLUORIDE, lead, cadmium, and aluminum, can result in these pathological and biochemical changes."
Aren't we adding "fluoride" (hexafluorosilicic acid) with the above co-contaminates into the population's water supply?