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October 21, 2014

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This 2013 file photo provided by Cardiff University shows Dr. Michael O'Donovan, deputy director of the MRC Centre for Neuropsychiatric Genetics and Genomics at Cardiff University School of Medicine in Cardiff, Wales, United Kingdom. Scientists have pinpointed more than 100 spots in our DNA code linked to the risk of schizophrenia, lighting up some little-known pathways that make the mysterious disease tick.

AP Photo/Cardiff University School of Medicine

This 2013 file photo provided by Cardiff University shows Dr. Michael O'Donovan, deputy director of the MRC Centre for Neuropsychiatric Genetics and Genomics at Cardiff University School of Medicine in Cardiff, Wales, United Kingdom. Scientists have pinpointed more than 100 spots in our DNA code linked to the risk of schizophrenia, lighting up some little-known pathways that make the mysterious disease tick.