Depression

• Radboud University Medical Centre for Mindfulness, Radboud University Nijmegen Medical Centre — Nijmegen, Gelderland, Netherlands
• Helen Dowling Institute — Bilthoven, Utrecht, Netherlands

• Hvidovre Hospital — Hvidovre, Denmark

• Butler Hospital — Providence, Rhode Island, United States

• Parkside Hemodialysis — Brooklyn, New York, United States

• Yale University — New Haven, Connecticut, United States
• Emory University — Atlanta, Georgia, United States
• Washington University — St Louis, Missouri, United States
• Columbia University Medical Center — New York, United States

Not specified

• University of Chicago — Chicago, Illinois, United States
• University of Iowa Hospitals and Clinics — Iowa City, Iowa, United States
• Burke Rehabilitation Hospital — White Plains, New York, United States

• Massachusetts General Hospital — Boston, Massachusetts, United States

• Neuromodulation Unit, Nottinghamshire Healthcare NHS Trust — Nottingham, England, United Kingdom

• McLean Hospital — Belmont, Massachusetts, United States
• Massachusetts General Hospital — Boston, Massachusetts, United States