Einstein Researchers (IMAGE) Albert Einstein College of Medicine Caption This is Kelvin P. Davies, Ph.D., associate professor of urology and Joel M. Friedman, M.D., Ph.D., professor of physiology & biophysics and of medicine at Einstein. Credit Albert Einstein College of Medicine 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.