Rectal Neoplasms

• Memorial Sloan Kettering at Basking Ridge — Basking Ridge, New Jersey, United States
• Memorial Sloan Kettering Cancer Center @ Suffolk — Commack, New York, United States
• Memorial Sloan Kettering Cancer Center — New York, United States
• Memorial Sloan Kettering at Mercy Medical Center — Rockville Centre, New York, United States

• Swedish Medical Center Cancer Institute — Seattle, Washington, United States

• City of Hope Medical Center — Duarte, California, United States

• Cliniques Universitaires St Luc - Université Catholique de Louvain — Brussels, Belgium

• National Center for Tumor Disease (NCT) — Heidelberg, Baden-Wurttemberg, Germany
• Krankenhaus Nord West, Radioonkologische Klinik — Frankfurt am Main, Hesse, Germany

• Esbjerg Hospital — Esbjerg, Denmark
• Odense University Hospital — Odense, Denmark
• Svendborg Hospital — Svendborg, Denmark
• Lillebaelt Hospital — Vejle, Denmark

• Warren Grant Magnuson Clinical Center - NCI Clinical Studies Support — Bethesda, Maryland, United States

• Phoenix VA Health Care System, Phoenix, AZ — Phoenix, Arizona, United States
• Southern Arizona VA Health Care System — Tucson, Arizona, United States
• VA Eastern Colorado Health Care System, Denver, CO — Denver, Colorado, United States
• Overton Brooks VA Medical Center — Shreveport, Louisiana, United States

Not specified

• radiation department, Cancer Hospital, CAMS — Beijing, Beijing Municipality, China