Ralf Stumm, University of Bonn (IMAGE) University of Bonn Caption from the Institute of Pharmacology and Toxicology at Jena University Hospital. Credit (c) Photo: Heiko Hellmann/UKJ Usage Restrictions This photo may be used together with the press release. 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.