Roland Ammann, University of Bern (IMAGE) University of Bern Caption Prof. Dr. med. Roland Ammann, Pediatric Hematology/Oncology, University Hospital for Pediatrics, Inselspital, University Hospital of Bern. Credit Courtesy of Roland Ammann 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.