University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
University of California, Los Angeles Medical Center, Los Angeles, California, United States
Arizona Arthritis & Rheumatology Research, PLLC, Phoenix, Arizona, United States
University of Texas Houston - Division of Rheumatology and Clinical Immunogenetics, Houston, Texas, United States
Hospital for Special Surgery, New York, New York, United States
University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States