1. Rheumatology Division, Lincoln Medical & Mental Health Center, 234 E. 149th st, New York, NY 10451, USA
2. Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA
3. Division of Pediatric Rheumatology, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, 1 Robert Wood Johnson Place, New Brunswick, NJ 08901, USA
4. Department of Physiology, School of Medicine, University of Athens, M. Asias 75, 11527 Athens, Greece
5. Immunity & Inflammation Department, Regeneron Pharmaceuticals, Inc, 777 Old Saw Mill River Road Tarrytown, NY 10591, USA
6. Pierre et Marie Curie University (Paris 6), Service de Rhumatologie, Groupe Hospitalier Pitié-Salpêtrière, 83 Boulevard de l'Hôpital, 75013 Paris, France