Gastrointestinal Neoplasms

• Bezmialem Vakif University Faculty of Medicine Dept of General Surgery — Istanbul, Turkey (Türkiye)
• Mustafa Hasbahceci — Istanbul, Turkey (Türkiye)

• Xijing Hospital of Digestive Disease — Xi'an, Shaanxi, China

• Howard University Cancer Center — Washington D.C., District of Columbia, United States
• CCOP - Mount Sinai Medical Center — Miami Beach, Florida, United States
• Medical College of Georgia Cancer Center — Augusta, Georgia, United States
• Fox Chase Virtua Health Cancer Program at Virtua Memorial Hospital Burlington County — Mount Holly, New Jersey, United States

Not specified

• National Cancer Center — Goyang, Kyeonggi-do, South Korea

• RISO — Deventer, Overijssel, Netherlands
• Medisch spectrum twente — Enschede, Overijssel, Netherlands
• University Medical Center Groningen — Groningen, Provincie Groningen, Netherlands

• CancerCare Manitoba — Winnipeg, Manitoba, Canada
• Sunnybrook-Odette Cancer Centre — Toronto, Ontario, Canada
• McGill University Health Centre — Montreal, Quebec, Canada
• Jewish General Hospital — Montreal, Quebec, Canada

• Sydney Cancer Centre — Sydney, New South Wales, Australia
• University Health Network — Toronto, Ontario, Canada

• CHU Henri Mondor — Créteil, France

• Klinikum rechts der Isar - III. Medizinische Klinik und Poliklinik — Munich, Bavaria, Germany