| http://www.w3.org/ns/prov#value | - ten a de novo genetic change to sperm or egg that results in autism, especially in cases where no one else in the family has any sign of the condition.9 For this reason, researchers interested in de novo genetic change focus on families with just one child on the autism spectrum, also known as simplex families, comparing the genetic material of parents and unaffected siblings with that of the affe
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