NBC Evening News for Wednesday, Aug 22, 2012
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(New York: Robert Bazell) A "Nature" report finding that older fathers are more likely to have children that are autistic examined; details given about the increase in genetic mutations in sperm cells as men age and about the other risk factors. [Vanderbilt Triad director Dr. Zachary WARREN- says it helps us understand the causes behind autism.] [Yale University Dr. Stephan SANDERS- says the other risk factors are more important than the risk from these mutations.]
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