1. Department of Internal Medicine, Rheumatology, Pneumology, Nephrology and Diabetology, Medius Klinik Kirchheim, Vasculitis Reference Center ERN-RITA, Teaching Hospital Eberhard Karls University Tübingen, Kirchheim unter Teck, Germany
2. Department of Nephrology, Endocrinology, Hypertensiology and Rheumatology, University Hospital Mannheim, University of Heidelberg, Heidelberg, Germany