1. Georg-Speyer Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany;
2. Heinrich-Pette-Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany;
3. Department of Medicine, Hematology/Oncology, Johann-Wolfgang-Goethe University, Frankfurt am Main, Germany;
4. German Cancer Consortium, Heidelberg, Germany;
5. German Cancer Research Center, Heidelberg, Germany;
6. Bioanalytical Mass Spectrometry Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany;
7. German Red Cross Blood Service and Institute for Transfusion Medicine and Immunohematology, Johann-Wolfgang-Goethe University, Frankfurt am Main, Germany; and
8. LOEWE Center for Cell and Gene Therapy, Frankfurt, Germany