Affiliation: | (1) Clinical Research Unit for Rheumatology, University Hospital, Breisacher Str. 64, D-79106 Freiburg, Germany;(2) Department of Internal Medicine, Division of Rheumatology and Clinical Immunology, University Hospital, Hugstetterstraße 55, D-79106 Freiburg, Germany;(3) Klinische Forschergruppe für Rheumatologie, Klinikum der Albert-Ludwigs-Universität, Freiburg Breisacherstr. 64 (Neurozentrum), D-79106 Freiburg, Germany |