Arthritis, Rheumatoid

• Jan Van Breemen Instituut — Amsterdam, Netherlands
• Gelre Ziekenhuis; Reumatology — Apeldoorn, Netherlands
• Rijnstate Ziekenhuis; Afdeling Reumatologie — Arnhem, Netherlands
• Amphia ziekenhuis, locatie langendijk — Breda, Netherlands

• Nuffield Orthopaedic Centre — Oxford, United Kingdom

• Rheumatology Division of Hospital das Clínicas da Faculdade de Medicina da Universidade de Sao Paulo — São Paulo, Brazil

• CHU Nîmes — Nîmes, Gard, France

• Arizona Arthritis and Rheuma — Mesa, Arizona, United States
• Valerius Medical Group & Research Ctr of Greater Long Beach — Los Alamitos, California, United States
• Pacific Arthritis Ctr Med Grp — Santa Maria, California, United States
• Bluegrass Comm Research, Inc. — Lexington, Kentucky, United States

• CHRU de Brest — Brest, France

• USC Department of Radiology — Los Angeles, California, United States

• Hospital General de Mérida — Mérida, Badajoz, Spain
• Hospital U. Central de Asturias — Oviedo, Principality of Asturias, Spain
• Hospital U. de Canarias — San Cristóbal de La Laguna, Tenerife, Spain
• Hospital de Cruces — Barakaldo, Vizcaya, Spain

Not specified

• Pinnacle Research Group — Anniston, Alabama, United States
• Achieve Clinical Research — Birmingham, Alabama, United States
• Advanced Arthritis Care and Research — Scottsdale, Arizona, United States
• TriWest Research Associates, LLC — El Cajon, California, United States