Differential Requirement of Vav Proteins for Btk-dependent and –Independent Signaling During B Cell Development oleh Annika C. Betzler, Sebastian Kieser, Katja Fiedler, Katja Fiedler, Simon Laban, Marie-Nicole Theodoraki, Patrick J. Schuler, Thomas Wirth, Kerry Tedford, Klaus-Dieter Fischer, Thomas K. Hoffmann, Cornelia Brunner