1. Department of Internal Medicine III–Rheumatology and Immunology, University of Erlangen-Nuremberg, Erlangen, Germany;
2. Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg–University Hospital Erlangen, Erlangen, Germany;
3. Xiangya Hospital, Central South University, Changsha, China;
4. Department of Bone Marrow Transplantation, University Hospital Essen, Essen, Germany;
5. Faculty of Medicine, University of Oslo, Oslo, Norway;
6. Department of Internal Medicine V–Hematology and Oncology, University of Erlangen-Nuremberg, Erlangen, Germany;
7. Department of Internal Medicine III, Hematology, and Internal Oncology, University Hospital Regensburg, Regensburg, Germany;
8. Department of Dermatology, Venerology, and Allergology, University Medical Center Leipzig, Leipzig, Germany;
9. Department of Medicine II, University Hospital Würzburg, Wurzburg, Germany; and
10. Department of Dermatology, University Hospital Regensburg, Regensburg, Germany