Jo Freudenheim, PhD (IMAGE) University at Buffalo Caption Jo Freudenheim, PhD, chair of epidemiology and environmental health, University at Buffalo. Credit University at Buffalo Usage Restrictions For the positive portrayal of research at the University at Buffalo. 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.