Depressive Disorder, Major

• University of Utah Department of Psychiatry — Salt Lake City, Utah, United States

• WPIC/ Bellefield Towers/Depression and Manic Depression Prevention Program — Pittsburgh, Pennsylvania, United States

• Medbridge Healthcare — Bradenton, Florida, United States
• Lakeland Sleep Store — Blaine, Minnesota, United States
• Lakeland Sleep — Plymouth, Minnesota, United States
• Medbridge Healthcare — Clayton, North Carolina, United States

• University of Utah School of Medicine — Salt Lake City, Utah, United States

• Ralph H. Johnson VA Medical Center, Charleston, SC — Charleston, South Carolina, United States

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

• University of North Carolina at Chapel Hill — Chapel Hill, North Carolina, United States

Not specified

• Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton — Hamilton, Ontario, Canada

• Mac Clinical Research — Manchester, Greater Manchester, United Kingdom
• MAC Clinical Research — Liverpool, Prescot, United Kingdom