Salk Institute -- Evans lab -- Tregs, Salk Institute (image) Salk Institute Share Print E-Mail Caption The researchers from left: Ruth Yu, Ye Zheng, Annette Atkins, Ronald Evans, Nanhai He, Michael Downes, Weiwei Fan, Brian Henriquez. Credit Salk Institute Usage Restrictions with credit and related coverage. Share Print E-Mail 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.