Pain

• Aberdeen Royal Infirmary - NHS Grampian — Aberdeen, Aberdeenshire, United Kingdom
• Addenbrooke's Hospital - Cambridge University Hospitals NHS Foundation Trust — Cambridge, Cambridgeshire, United Kingdom
• Salford Royal NHS Foundation Trust — Salford, Greater Manchester, United Kingdom
• Glasgow Royal Infirmary - — Glasgow, Lanarkshire, United Kingdom

• anesthesia department at Cairo University — Cairo, Elmanial, Egypt

Not specified

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

• Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA — Philadelphia, Pennsylvania, United States

• Foundation University — Islamabad, Punjab Province, Pakistan

• Veteran Affairs Hospital — West Haven, Connecticut, United States

• Centre Hospitalier Universitaire Vaudois (CHUV) — Lausanne, Canton of Vaud, Switzerland

• UCLA Ronald Reagan Medical Center — Los Angeles, California, United States
• Emory University Hospital — Atlanta, Georgia, United States
• Massachusetts General Hospital — Boston, Massachusetts, United States
• Crittenton Hospital — Rochester, Michigan, United States

• Karmanos Cancer Institute — Detroit, Michigan, United States
• University of Texas M.D. Anderson Cancer Center — Houston, Texas, United States
• University of British Columbia — Vancouver, British Columbia, Canada
• University Hospital of Strasbourg — Strasbourg, France