Connective Tissue Diseases

• Axis Clinical Trials — Los Angeles, California, United States
• University of California, San Francisco — San Francisco, California, United States

• Hanyang university hospital — Seoul, South Korea

• University of Alabama at Bermingham — Birmingham, Alabama, United States
• University of Alabama at Birmingham - Arthritis Clinical Intervention Program (ACIP) SRC 076 — Birmingham, Alabama, United States
• Rheumatology Associates of North Alabama, PC — Huntsville, Alabama, United States
• ArthroCare, Arthritis Care & Research, PC — Gilbert, Arizona, United States

• Children's Hospital of Philadelphia — Philadelphia, Pennsylvania, United States

• The First Affiliated Hospital of Anhui Medical University — Hefei, Anhui, China
• Peking Union Medical College Hospital — Beijing, Beijing Municipality, China
• General Hospital of Guangzhou Military Command of PLA — Guangzhou, Guangdong, China
• Xiangya Hospital Central South University — Changsha, Hunan, China

Not specified

• Rheumatology Unit IRCCS Orthopedic Rizzoli Institute — Bologna, BO, Italy
• Rheumatology Unit, Internal Medicine Department of Internal Medicine and Nephrology diseases and Aging — Bologna, BO, Italy
• Rheumatology Unit, Department of Internal Medicine Buflini Hospital — Cesena, FC, Italy
• Medical Genetics Unit, Dept. of Biomedical and Specialty Surgery — Ferrara, FE, Italy

• Leeds Teaching Hospitals NHS Trust — Leeds, West Yorkshire, United Kingdom

Not specified

• Department of Oncology, Copenhagen University hospital, Herlev — Herlev, Denmark