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The unorthodox practice of chelation
No one knows for certain what causes  autism, but one theory — chelation— has ignited an intense debate. Now, one scientist wants to put that theory to the test. In a desperate quest for answers, he is using his scientific know-how to test the controversial therapy. TRANSCRIPT
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  'Autism: The Hidden Epidemic?' on DVD

"Autism: The Hidden Epidemic?" is a compilation of NBC News special reports on the subject of America's fastest growing serious developmental disability. Included on the DVD are an 11-part "Today" show series, a four-part series from CNBC, extensive reporting from "Nightly News with Brian Williams," as well as comprehensive coverage on autism that aired on MSNBC, NBC Universal's owned-and-operated stations and Telemundo.

  SPECIAL COVERAGE FROM NBC NEWS
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  NEWSWEEK'S AUTISM COVERAGE
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Scientists are now looking for the earliest signs of the mysterious disorder as desperate parents hunt for treatments that may improve their children's lives
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Live Talk: Claudia Kalb chats about autism
Join Claudia Kalb for a Live Talk Wednesday, Feb. 23, at noon ET as she discusses the mysterious brain disorder
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