Dr. Christa E. Müller, University of Bonn (image) University of Bonn Caption This is from the Pharmaceutical Institute of the University of Bonn. Credit (c) Photo: Barbara Frommann/Uni Bonn Usage Restrictions This photo may be used with the press release. 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.