1 Department of Transfusion Medicine, Cellular Therapy and Hemostaseology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
2 Institute of Cellular Therapeutics, Hannover Medical School (MHH), Hannover, Germany.
3 Institute of Clinical Immunology, University Hospital and Medical Faculty, University of Leipzig, Leipzig, Germany.
4 Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany.