Penn Nursing's Margo Brooks Carthon (IMAGE) University of Pennsylvania School of Nursing Caption Penn Nursing's J. Margo Brooks Carthon, PhD, APRN, FAAN, Associate Professor and lead investigator of the study. Credit Penn Nursing Usage Restrictions None License Licensed 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.