Arthritis

• The Birmingham Pain Center — Birmingham, Alabama, United States
• Horizon Research Group — Mobile, Alabama, United States
• Arizona Center for Clinical Research — Peoria, Arizona, United States
• Arizona Research Center, Inc — Phoenix, Arizona, United States

• Research Site — Los Angeles, California, United States
• Research Site — Seattle, Washington, United States
• Research Site — London, United Kingdom

• Research Site — Anniston, Alabama, United States
• Research Centre — Palm Desert, California, United States
• Research Site — Oklahoma City, Oklahoma, United States
• Research Centre — Duncansville, Pennsylvania, United States

• Research Site — Woolloongabba, Queensland, Australia
• Research Site — Woodville, South Australia, Australia
• Research Site — Sarnia, Ontario, Canada
• Research Site — New Market, Canada

Not specified

• Huntsville, Alabama, United States
• Paradise Valley, Arizona, United States
• Tucson, Arizona, United States
• Santa Monica, California, United States

• Clinical Research Centre, Copenhagen University Hospital, Hvidovre — Hvidovre, Denmark

• Instituto de Ortopedia e Traumatologia HC-FMUSP — São Paulo, Brazil

• Pfizer Investigational Site — Glostrup Municipality, Denmark
• Pfizer Investigational Site — Hellerup, Denmark
• Pfizer Investigational Site — Jyväskylä, Finland
• Pfizer Investigational Site — Helsinki, Finland

• University Hospital "A. Gemelli", Catholic University of the Sacred Heart — Rome, Italy