1 Rheumatology/Clinical Immunology, Department of Internal Medicine II, University of Würzburg, Wuerzburg, Germany.
2 Centre for Interdisciplinary Clinical Immunology, Rheumatology and Auto-inflammatory Diseases and Department of Internal Medicine II, University Hospital Tuebingen, Tuebingen, Germany.
3 Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
4 Department of Hematologic Malignancies and Cellular Therapy, Duke University Medical Center, Durham, NC, United States.