| Authors: |
Thiele K; German Rheumatology Research Centre, Epidemiology and Health Services Research, Berlin, Germany. Electronic address: thiele@drfz.de., Albrecht K; German Rheumatology Research Centre, Epidemiology and Health Services Research, Berlin, Germany., Veltri C; German Rheumatology Research Centre, Epidemiology and Health Services Research, Berlin, Germany., Karberg K; RVZ Steglitz, Berlin, Germany., Köhler B; Rheumazentrum Ratingen, Ratingen, Germany., Callhoff J; German Rheumatology Research Centre, Epidemiology and Health Services Research, Berlin, Germany., Richter JG; Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University 40225, Düsseldorf, Germany; Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University 40225, Düsseldorf, Germany. |