To cut through some of the mystery of mental disorders, which largely are defined by how people behave, scientists are seeking clues lurking in blood and saliva. The latest initiative is a clinical trial of a blood test that may distinguish between kids with autism and those with other developmental delays. Isaac Kohane, the Lawrence J. Henderson Professor of Pediatrics at Boston Children’s Hospital and director of the Countway Library of Medicine at HMS, led some of this research.
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