Systemic Sclerosis (SSc)

• The First Medical Center of Chinese PLA General Hospital — Beijing, Beijing Municipality, China

• Beijing Boren Hospital — Beijing, China
• Beijing GoBroad Hospital — Beijing, China

• Department of Rheumatology and Immunology, Peking University People's Hospital — Beijing, Beijing Municipality, China

• Oslo University Hospital — Oslo, Norway

• University of the West of England/ Bristol Royal Infirmary — Bristol, United Kingdom

• Hacettepe University — Ankara, Altındağ, Turkey (Türkiye)

• Selcuk University — Konya, Selcuklu, Turkey (Türkiye)

Not specified

• Department of Clinical Medicine - The Section for Rheumatology, Aarhus University Hospital — Aarhus, Denmark
• Department for Rheumatology and Spine Diseases, Copenhagen University Hospital - Rigshospitalet — Glostrup Municipality, Denmark
• Department of Rheumatology, Odense University Hospital — Odense, Denmark

• Hôpital Femme-Mère-Enfant — Bron, France
• Hôpital Edouard Herriot — Lyon, France
• Centre Hospitalier Lyon-Sud — Oullins, France