1. Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Toho University (Ohashi Medical Center), Tokyo, Japan;
2. Sanofi K.K., Tokyo, Japan;
3. Sanofi, Bridgewater, NJ, USA;
4. Sanofi-Genzyme, Cambridge, MA, USA;
5. Regeneron Pharmaceuticals, Inc., Tarrytown, NY, USA;
6. First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan