Gastrointestinal Neoplasms

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

• Clinica Universidad de Navarra — Pamplona, Navarre, Spain

• Tehran University of Medical Science — Tehran, Tehran Province, Iran

• Achieve Clinical Research, LLC — Birmingham, Alabama, United States
• Clinical Research Associates — Huntsville, Alabama, United States
• Atlanta Gastroenterology — Atlanta, Georgia, United States
• Jesse Brown VA — Chicago, Illinois, United States

• Desert Sun Clinical Research — Tucson, Arizona, United States
• Remek Research — Pomona, California, United States
• Sharp Rees-Stealy — San Diego, California, United States
• Southern California Medical Gastroenterology Group, Inc — Santa Monica, California, United States

• Klinikum Ludwigsburg, Klinik für Innere Medizin, Gastroenterologie, Hämato-Onkologie, Diabetologie — Ludwigsburg, Baden-Wurttemberg, Germany
• Onkologische Schwerpunktpraxis — Wendlingen, Baden-Wurttemberg, Germany
• Klinikum Deggendorf, Medizinische Klinik II — Deggendorf, Bavaria, Germany
• Ernst von Bergmann Klinikum, Zentrum für Hämatologie/Onkologie/Strahlenheilkunde — Potsdam, Brandenburg, Germany

• Dana-Farber Cancer Institute — Boston, Massachusetts, United States

• National Cheng Kung University Hospital — Tainan, Taiwan

• Mayo Clinic — Rochester, Minnesota, United States

Not specified