Affiliation: | (1) Department of Internal Medicine, Division of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30.001, 9700, RB, Groningen, The Netherlands;(2) Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30.001, 9700, RB, Groningen, The Netherlands;(3) Department of Internal Medicine, Division of Vascular Diseases, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30.001, 9700, RB, Groningen, The Netherlands |