Colonic Diseases

• Memorial Sloan Kettering Basking Ridge (Follow Up Only) — Basking Ridge, New Jersey, United States
• Memorial Sloan Kettering Cancer Commack (Follow Up Only) — Commack, New York, United States
• Memorial Sloan Kettering Westchester (Follow Up Only) — Harrison, New York, United States
• Memorial Sloan Kettering Cancer Center — New York, United States

• Hadassah Ein Karem University Hospital — Jerusalem, Israel
• University Hospital Assuta Ashdod — Ashdod, Israel
• Soroka University Medical Center — Beersheba, Israel
• Oncology Department Hillel Yaffe Medical Center — Hadera, Israel

• Hospital del Mar — Barcelona, Spain
• Hospital Clínico — Madrid, Spain
• Hospital Universitario Virgen de la Arrixaca — Murcia, Spain
• Hospital Meixoeiro — Ourense, Spain

• Central Hospital of Guangdong Provincial Nongken — Zhanjiang, Guangdong, China

• ZU Leuven — Leuven, Belgium
• Evangelisches Krankenhaus Düsseldorf — Düsseldorf, Germany
• Universitätsklinikum Ulm — Ulm, Germany
• Fundación Biomédica Galicia Sur — Pontevedra, Spain

• Research Site — Multiple Locations, Japan

• Hospital General Universitario de Alicante — Alicante, Spain
• Hospital Universitario Parc Taulí — Sabadell, Barcelona, Spain
• Hospital Universitario Marqués de Valdecilla — Santander, Cantabria, Spain
• Hospital Público General de Tomelloso — Tomelloso, Ciudad Real, Spain

Not specified

• Department of Surgery, The National Children Hospital, Hanoi — Hanoi, Vietnam

• Royal Hallamshire Hospital — Sheffield, South Yorkshire, United Kingdom