Affiliation: | Clinical Research Unit for Rheumatology, University of Freiburg, Medical School, Breisacher Str. 64, D-79106 Freiburg, Germany Fax: 49-761-270-5298; e-mail: eibel@nz11.ukl.uni-freiburg.de, DE Department of Orthopedic Surgery, University of Tübingen, Medical School, Pulvermuehlstr. 5, D-72070 Tübingen, Germany, DE Department of Internal Medicine, Division of Rheumatology and Immunology, University of Freiburg, Medical School, Hugstetter Str. 55, D-79106 Freiburg, Germany, DE
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