Scleroderma

• University of Michigan Hospital — Ann Arbor, Michigan, United States

• University Clinic, Laiko Hospital — Athens, Greece

• University of Pennsylvania Health System — Philadelphia, Pennsylvania, United States

• Clinical Hospital of University of Campinas — Campinas, São Paulo, Brazil
• University of Campinas — Campinas, São Paulo, Brazil

• Skåne University hospital, Dept of rheumatology — Lund, Sweden

• Medical University of South Carolina — Charleston, South Carolina, United States

• PGIMER — Chandigarh, India

• Arizona Arthritis and Rheumatology Research, PLLC — Phoenix, Arizona, United States
• Baptist Health Center for Clinical Research — Little Rock, Arkansas, United States
• Arthritis Associates of Southern California — Los Angeles, California, United States
• UCLA David Geffen School of Medicine — Los Angeles, California, United States

• Boston University Medical Center — Boston, Massachusetts, United States

Not specified