J Rheumatol 2015 Jan 1;42(1):60-3. Epub 2014 Oct 1.
From the Department of Rheumatology, Oslo University Hospital-Rikshospitalet; and the Institute of Clinical Medicine, University of Oslo, Oslo, Norway.A-M. Hoffmann-Vold, Dr. med; R. Gunnarsson, Dr. med, Department of Rheumatology, Oslo University Hospital-Rikshospitalet and Institute of Clinical Medicine, University of Oslo; T. Garen; Ø. Midtvedt, MD, Department of Rheumatology, Oslo University Hospital-Rikshospitalet; Ø. Molberg, MD, Professor of Medicine, Department of Rheumatology, Oslo University Hospital-Rikshospitalet, and Institute of Clinical Medicine, University of Oslo.