Affiliations

• ¹ Children's Hospital of Philadelphia, Philadelphia, PA, USA.
• ² University of Pennsylvania, Philadelphia, PA, USA.
• ³ New York University Grossman School of Medicine, New York, NY, USA.
• ⁴ University of Missouri-Kansas City, Children's Mercy Kansas City, Kansas City, MO, USA.
• ⁵ University of Utah, Salt Lake City, UT, USA.
• ⁶ Riley Hospital for Children at Indiana University Health, Indianapolis, IN, USA.
• ⁷ Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, USA.
• ⁸ University of California San Francisco, San Francisco, CA, USA.
• ⁹ Albert Einstein College of Medicine, Children's Hospital at Montefiore, Bronx, NY, USA.
• ¹⁰ Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.
• ¹¹ Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
• ¹² Duke University Medical Center, Durham, NC, USA.
• ¹³ Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA.
• ¹⁴ Lupus Foundation of America, Washington, D.C, USA.
• ¹⁵ Cure JM Foundation, Leesburg, VA, USA.
• ¹⁶ Arthritis Foundation, Atlanta, GA, USA.
• ¹⁷ Patient-Centered Outcomes Research Institute, Washington, D.C, USA.
• ¹⁸ The Childhood Arthritis and Rheumatology Research Alliance, Milwaukee, WI, USA.
• ¹⁹ Division of Rheumatology, Hospital for Sick Children, Toronto, ON, M5G1X8, Canada.
• ²⁰ Children's Hospital of Philadelphia, Philadelphia, PA, USA. andrea.knight@sickkids.ca.
• ²¹ University of Pennsylvania, Philadelphia, PA, USA. andrea.knight@sickkids.ca.
• ²² Division of Rheumatology, Hospital for Sick Children, Toronto, ON, M5G1X8, Canada. andrea.knight@sickkids.ca.
• ²³ University of Toronto Faculty of Medicine, Toronto, ON, Canada. andrea.knight@sickkids.ca.