Dr. Catherine Limperopoulos, Ph.D. (IMAGE) Children's National Hospital Caption Dr. Catherine Limperopoulos, Ph.D., director of the Center for Prenatal, Neonatal and Maternal Health Research at Children’s National Credit Children's National Hospital Usage Restrictions Credit: Children's National Hospital License Original content 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.