Rectal Carcinoma

• Fairbanks Memorial Hospital — Fairbanks, Alaska, United States
• Cancer Center at Saint Joseph's — Phoenix, Arizona, United States
• Mercy Hospital Fort Smith — Fort Smith, Arkansas, United States
• NEA Baptist Memorial Hospital and Fowler Family Cancer Center - Jonesboro — Jonesboro, Arkansas, United States

• Mayo Clinic in Rochester — Rochester, Minnesota, United States

• Ohio State University Comprehensive Cancer Center — Columbus, Ohio, United States

• Ohio State University Comprehensive Cancer Center — Columbus, Ohio, United States

• Emory University Hospital Midtown — Atlanta, Georgia, United States
• Emory University Hospital — Atlanta, Georgia, United States
• Emory Saint Joseph's Hospital — Atlanta, Georgia, United States
• Emory Decatur Hospital — Decatur, Georgia, United States

• Institut Paoli Calmettes — Marseille, Bouches Du Rhône, France
• Hôpital Nord de Marseille — Marseille, Bouches Du Rhône, France
• Hôpital Européen de MARSEILLE — Marseille, Bouches-du-rhône, France
• CHU Besançon — Besançon, Doubs, France

• University Medical Center Groningen (UMCG) — Groningen, Provincie Groningen, Netherlands

Not specified

• Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington, United States

• UO Oncologia Medica IRCCS IRST — Meldola, FC, Italy
• Oncologia Medica PO RAVENNA; FAENZA; LUGO — Ravenna, RA, Italy