Fibromyalgia

• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Huntsville, Alabama, United States
• Pfizer Investigational Site — Phoenix, Arizona, United States

• Lincoln, Nebraska, United States

• Department of Psychiatry, UMDNJ-Robert Wood Johnson Medical School — Piscataway, New Jersey, United States

• The Pennine Acute Hospitals NHS Trust — Bury, Lancashire, United Kingdom

Not specified

• Phoenix, Arizona, United States
• Colton, California, United States
• Los Angeles, California, United States
• Santa Ana, California, United States

• Ethics Commitee of Antalya Training and Research Hospital — Antalya, Turkey (Türkiye)

• BREUIL — Nice, France

• Federal University of São Carlos — São Carlos, São Paulo, Brazil

• Health Sciences Faculty, University of Valladolid — Soria, Spain