Chronic Low Back Pain

• Alliance Clinical Research — Birmingham, Alabama, United States
• Coastal Clinical Research, Inc. — Mobile, Alabama, United States
• Arizona Research Center — Phoenix, Arizona, United States
• Redpoint Research — Phoenix, Arizona, United States

• University of North Texas Health Science Center — Fort Worth, Texas, United States

• Research Center in Back, Neck, Other Joint Pain and Human Performance — Khon Kaen, Thailand

• Brooke Army Medical Center — San Antonio, Texas, United States

• University of California, San Francisco's Osher Center for Integrative Medicine — San Francisco, California, United States

Not specified

• VA Connecticut Healthcare System West Haven Campus, West Haven, CT — West Haven, Connecticut, United States

• CHU Clermont-Ferrand — Clermont-Ferrand, France

• University of Alabama at Birmingham — Birmingham, Alabama, United States

• Hospital For Special Surgery — New York, United States