Anne Willis and James Thaventhiran (IMAGE) University of Cambridge Caption Biochemist Professor Anne Willis and immunologist Dr James Thaventhiran at the MRC Toxicology Unit at the University of Cambridge led this work. Credit Mike Thornton, Still Vision Photography Usage Restrictions With credit as below License Original 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.