Christopher R. Heier, Ph.D., and Alyson A. Fiorillo, Ph.D. (image) Children's National Health System Share Print E-Mail Caption Christopher R. Heier, Ph.D., senior study author, and study lead author Alyson A. Fiorillo, Ph.D. Both are assistant professors at Children's Research Institute. Credit Children's National Health System Usage Restrictions Please credit Children's National Health System Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.