Guochun Jiang, PhD (IMAGE) University of North Carolina Health Care Caption Guochun Jiang, PhD Credit UNC Department of Biochemistry and Biophysics Usage Restrictions Credit must be given to the creator. License CC BY 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.