1. Division of Pediatric Rheumatology, Robert Wood Johnson Medical School-UMDNJ, Department of Pediatrics, New Brunswick, NJ, USA,
2. Hospital For Special Surgery, New York, NY, USA
3. Weill Cornell Medical College, Hospital For Special Surgery, New York, NY, USA
4. Division of Pediatric Rheumatology, Robert Wood Johnson Medical School-UMDNJ, Department of Pediatrics, New Brunswick, NJ, USA, La Rabida Children's Hospital, The University of Chicago, La Rabida Children's Hospital, Chicago, IL, USA
5. Division of Pediatric Rheumatology, Robert Wood Johnson Medical School-UMDNJ, Department of Pediatrics, New Brunswick, NJ, USA, Hospital for Special Surgery, Weill Medical College of Cornell University; Division of Pediatric Rheumatology, Hospital for Special Surgery, New York, NY, USA