1. Center for Health Services Research, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf, Germany
2. FH JOANNEUM Gesellschaft mbH, Graz, Austria
3. Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
4. Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
5. AGEIS, Université Grenoble Alpes, Grenoble, France
6. Department of Psychiatry and Psychotherapy, Center for Mental Health, Immanuel Hospital Rüdersdorf, Brandenburg Medical School Theodor Fontane, Rüdersdorf, Germany
7. Rheumapraxis an der hase, Osnabrück, Germany
8. Immunologikum Hamburg, Rheumatologie and Klinische Immunologie, Hamburg, Germany
9. MVZ für Rheumatologie Dr. Martin Welcker GmbH, Planegg, Germany