Gastrointestinal Neoplasms

• Highlands Oncology Group DeptofHighlandsOncologyGrp(2) — Fayetteville, Arkansas, United States
• Loma Linda Oncology Medical Group Loma Linda — Redlands, California, United States
• Henry Ford Hospital Dept. of Henry Ford Hospital — Detroit, Michigan, United States
• University of Minnesota Cancer Center — Minneapolis, Minnesota, United States

Not specified

• Local Institution — Duarte, California, United States
• Local Institution — Tampa, Florida, United States
• Local Institution — Baltimore, Maryland, United States
• Local Institution — St Louis, Missouri, United States

• Rush University Medical Center — Chicago, Illinois, United States

• Philadelphia Veterans Affairs Medical Center — Philadelphia, Pennsylvania, United States

• Beth Israel Medical Center - Philipps Ambulatory Care Center — New York, United States

• Dept of gastrointestinal surgery, Oslo University Hospital — Oslo, Norway

• Karl-Franzens-University Graz — Graz, Austria
• Innsbruck Universitaetsklinik — Innsbruck, Austria
• Krankenhaus der Elisabethinen — Linz, Austria
• St. Vincent's Hospital — Linz Donau, Austria

• Yonsei University, College of Medicine, Yonsei Health System, Yonsei Cancer Center — Seoul, South Korea

• Henan Cancer Hospital (The Affiliated Cancer Hospital of Zhengzhou University) — Zhengzhou, Henan, China