Gastrointestinal Neoplasms

• Mayo Clinic in Arizona — Scottsdale, Arizona, United States
• University of Southern California/Norris Cancer Center — Los Angeles, California, United States
• Mayo Clinic in Florida — Jacksonville, Florida, United States
• Johns Hopkins University/Sidney Kimmel Comprehensive Cancer Center — Baltimore, Maryland, United States

• Htal Vicente Lopez — Vicente López, Argentina

• Sepulveda Ambulatory Care Center, VA Greater Los Angeles Healthcare System — Los Angeles, California, United States
• Vìtkovice Hospital — Ostrava, Czechia
• S. Barbara Hospital — Iglesias, CI, Italy

• Zhejiang Cancer Hospital — Hangzhou, Zhejiang, China

• Massachusetts General Hospital — Boston, Massachusetts, United States
• Brigham and Women's Hospital — Boston, Massachusetts, United States
• Dana-Farber Cancer Institute — Boston, Massachusetts, United States

• U.S.C./Norris Comprehensive Cancer Center — Los Angeles, California, United States

• Angers, France
• Besançon, France
• Boulogne-Billancourt, France
• Colmar, France

• Memorial Sloan-Kettering Cancer Center — New York, United States

Not specified

• Research site — Rosario, Argentina
• Research site — Coburg VIC, Australia
• Research site — Frankston, VIC, Australia
• Research site — Perth, Australia