Anhedonia

• Medical University of Vienna, Department of Psychiatry and Psychotherapy, Division of General Psychiatry — Vienna, State of Vienna, Austria

• Florida State University — Tallahassee, Florida, United States

• Columbia University — New York, United States

• The University of Texas Health Science Center at Houston — Houston, Texas, United States

• Emory University Hospital — Atlanta, Georgia, United States

• Philipps-University Marburg — Marburg, Hesse, Germany

• Nottingham University Hospitals NHS Trust — Nottingham, Nottinghamshire, United Kingdom
• Nottinghamshire Healthcare NHS Foundation Trust — Nottingham, United Kingdom

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

• San Francisco Healthcare System — San Francisco, California, United States

Not specified