Rectal Diseases

• Royal Marsden Hospital — Sutton, London, United Kingdom
• Belfast City Hospital — Belfast, Northern Ireland, United Kingdom
• Oxford University Hospitals — Headington, Oxford, United Kingdom
• Velindre Cancer Centre - Cardiff — Cardiff, Whitchurch, United Kingdom

• Robert H. Lurie Comprehensive Cancer Center at Northwestern University — Chicago, Illinois, United States
• John H. Stroger, Jr. Hospital of Cook County — Chicago, Illinois, United States
• Evanston Hospital — Evanston, Illinois, United States
• Elkhart General Hospital — Elkhart, Indiana, United States

• Samsung Medical Center — Seoul, Gangnam-gu, South Korea

Not specified

• University of California San Diego Cancer Center — La Jolla, California, United States
• UCSF Cancer Center and Cancer Research Institute — San Francisco, California, United States
• CCOP - Christiana Care Health Services — Wilmington, Delaware, United States
• Walter Reed Army Medical Center — Washington D.C., District of Columbia, United States

• Fox Chase Cancer Center — Philadelphia, Pennsylvania, United States

• University of Texas MD Anderson Cancer Center — Houston, Texas, United States

• Lucy Curci Cancer Center at Eisenhower Memorial Hospital and Medical Center — Rancho Mirage, California, United States
• Front Range Cancer Specialists — Fort Collins, Colorado, United States
• Eugene M. and Christine E. Lynn Cancer Institute at Boca Raton Community Hospital — Boca Raton, Florida, United States
• Lakeland Regional Cancer Center at Lakeland Regional Medical Center — Lakeland, Florida, United States

• Hackensack University Medical Center — Hackensack, New Jersey, United States
• University of Rochester Cancer Center — Rochester, New York, United States
• Hahnemann University Hospital — Philadelphia, Pennsylvania, United States

• St.-Antonius-Hospital Eschweiler — Eschweiler, Germany
• Zentrum für Tumorbiologie und Integrative Medizin, Klinikum Wilhelmshaven — Wilhelmshaven, Germany