Shiuan Chen, Ph.D. (IMAGE) City of Hope Caption Shiuan Chen, Ph.D., the Lester M. and Irene C. Finkelstein Chair in Biology, has been investigating the potential beneficial effects of white button mushroom (Agaricus bisporus) at City of Hope for about 20 years. Credit City of Hope Usage Restrictions Please use photo caption 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.