1. Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, The Netherlands
2. Department of Medicine, Boston University, BostonUSA
3. Department of Medicine, Royal Free and University College Medical School, London, UK
4. Department of Rheumatology, Institute of Experimental and Clinical Medicine, Vilnius University, Vilnius, Lithuania
5. Heller Institute of Medical Research, Sheba Medical Center, Tel-Hashomer, Israel
6. Department of Medicine, Regional Hospital No. 1, Yekaterinburg, Russia
7. Institute of Rheumatology, Russian Academy of Medical Sciences, Moscow, Russia
8. Institute of Rheumatology, Warsaw, Poland
9. Division of Rheumatology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul, Turkey
10. Amyloid Center, Biotechnology Research Laboratory, University Hospital IRCCS Policlinico San Matteo, Pavia, Italy
11. Department of Internal Diseases and Rheumatology of Railway Hospital, Wroclaw, Poland
12. Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
13. Department of Medicine, Mount Sinai Medical Center, New YorkUSA
14. Department of Nephrology and Internal Medicine, Charles Nicolle Hospital, Tunis, Tunisia
15. Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, IndianapolisUSA
16. Department of Rheumatology, Marmara University Medical School, Istanbul, Turkey
17. Rheumatism Foundation Hospital, Heinola, Finland
18. Neurochem Inc., Laval, Quebec, Canada