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Scientists explain research taking place in Syracuse: Scientists explain research taking place in Syracuse: Frank Middleton, PhD Frank Middleton, PhD, on a saliva test to detect concussion;, on a saliva test to detect concussion; Jason Horton, PhD Jason Horton, PhD, and, and Pranav Pranav Soman, PhD, Soman, PhD, on building replacement bone with stem cells and a 3-D printer; and Steven Hicks, MD, PhD, on whether on building replacement bone with stem cells and a 3-D printer; and Steven Hicks, MD, PhD, on whether aerial pesticide spraying aerial pesticide spraying might be related to autism rates in children. might be related to autism rates in children.