Joseph Wiemels, PhD (IMAGE) Keck School of Medicine of USC Caption Joseph Wiemels, PhD, Cancer Epidemiology Program at the USC Norris Comprehensive Cancer Center Credit Richard Carrasco 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.