Gewebeprobe aus der Milz einer Maus: (IMAGE) University of Bonn Caption Die B-Zellen (grün) interagieren mit Faktor VIII (rot). Credit Foto: AG Becker-Gotot / Universitätsklinikum Bonn Usage Restrictions This image may be used together with the press release. License Original 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.