persky-daniel_klh2590-inline.jpg (IMAGE) University of Arizona Health Sciences Caption Daniel O. Persky, MD Credit (Photo: University of Arizona Health Sciences, Kris Hanning) 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.