Norbert Sewald, Bielefeld University (image) Bielefeld University Share Print E-Mail Caption Professor Dr. Norbert Sewald is conducting research on anti-tumour drugs designed to work without side effects. He is coordinating the new international network of doctoral students. Credit Photo: Bielefeld University Usage Restrictions The image may only be used with appropriate caption and credit. 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.