Digestive System Neoplasms

• University of Kansas Medical Center — Kansas City, Kansas, United States
• Cancer Center of Kansas — Wichita, Kansas, United States
• Peggy and Charles Stephenson Oklahoma Cancer Center — Oklahoma City, Oklahoma, United States

Not specified

• Academic Medical Center — Amsterdam, Netherlands
• University Medical Center — Groningen, Netherlands
• Leiden University Medical Center — Leiden, Netherlands
• University Medical Center St. Radboud — Nijmegen, Netherlands

• Investigational Site 1 — Barcelona, Spain

• Hospital Cochin — Paris, France