Prof. Dr. Volker Heussler (IMAGE) University of Bern Caption Prof. Dr. Volker Heussler de l'Institut de biologie cellulaire de l'Université de Berne. Credit mà d Usage Restrictions None 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.