1. Department of Clinical Sciences Lund, Division of Nephrology, Lund University , Sweden
2. Department Nephrology, Hospital Universitario del Sureste , Arganda del Rey, Madrid , Spain
3. Division of Immunology and Allergy Department of Medicine, University Hospital of Lausanne, Lausanne University , Lausanne , Switzerland
4. Department of Pathology , Groningen , The Netherlands
5. Department of Rheumatology and Clinical Immunology, Maasstad Hospital , Rotterdam , The Netherlands
6. Department of Nephrology, Royal Berkshire Hospital , Reading , UK
7. Department of Nephrology, General Hospital in Prague and First Faculty of Medicine, Charles University , Prague , Czech Republic
8. Department of Medicine, University of Cambridge , Cambridge , UK
9. Department of Pathology, Leiden University Medical Centre , Leiden , The Netherlands
10. Department of Nephrology, Skane Univ. Hospital Malmö , Malmö , Sweden
11. Department of Clinical Sciences Lund, Division of Nephrology, Lund University , Lund , Sweden