ATR Inhibition (IMAGE) University of Pennsylvania School of Medicine Caption ATR inhibition as a means to identify genomic sites of problematic DNA replication in mouse and human cells. Credit Eric Brown, PhD, Perelman School of Medicine, University of Pennsylvania 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.