Digestive System Neoplasms

• University of Florida Shands Cancer Center — Gainesville, Florida, United States
• Rush University Medical Center — Chicago, Illinois, United States
• James Graham Brown Cancer Center at University of Louisville — Louisville, Kentucky, United States
• Massachusetts General Hospital Cancer Center — Boston, Massachusetts, United States

Not specified

• Paul Brousse hospital — Villejuif, France

• CCOP - Scottsdale Oncology Program — Scottsdale, Arizona, United States
• Mayo Clinic — Jacksonville, Florida, United States
• CCOP - Atlanta Regional — Atlanta, Georgia, United States
• MBCCOP - Hawaii — Honolulu, Hawaii, United States

• CCOP - Scottsdale Oncology Program — Scottsdale, Arizona, United States
• Mayo Clinic Jacksonville — Jacksonville, Florida, United States
• CCOP - Illinois Oncology Research Association — Peoria, Illinois, United States
• CCOP - Carle Cancer Center — Urbana, Illinois, United States

• Asan Medical Center — Seoul, Songpa-gu, South Korea

• Istituti Ospitalieri di Cremona — Cremona, Italy

• University of Chicago — Chicago, Illinois, United States
• Mayo Clinic — Rochester, Minnesota, United States
• Memorial Sloan Kettering Cancer Center — New York, United States
• Fox Chase Cancer Center — Philadelphia, Pennsylvania, United States

Not specified

• Herlev Hospital — Herlev, Denmark
• Roskilde Hospital — Roskilde, Denmark