1. Department of Medicine V, University of Heidelberg, Heidelberg, Germany;
2. Unit of Adaptive Immune Regulation, German Cancer Research Center, DKFZ, Heidelberg, Germany;
3. Institut für Transplantationsimmunologie, Medizinische Hochschule Hannover, Hannover, Germany;
4. Division of Biostatistics, German Cancer Research Center, DKFZ, Heidelberg, Germany;
5. BIOAXXESS, Malvern, United Kingdom; and
6. Department of Medicine I, University of Heidelberg, Heidelberg, Germany