Digestive System Neoplasms

• Institute for Clinical Cancer Research Krankenhaus Nordwest — Frankfurt, Germany
• Università degli studi della Campania "Luigi Vanvitelli" — Naples, Campania, Italy

• University of California San Francisco — San Francisco, California, United States

• Cleveland Clinic Flroida — Weston, Florida, United States

• Mayo Clinic Phoenix — Scottsdale, Arizona, United States
• Highlands Oncology Group — Rogers, Arkansas, United States
• Karmanos Cancer Institute — Detroit, Michigan, United States
• Mayo Clinic Cancer Center — Rochester, Minnesota, United States

• Ruhr University of Bochum — Herne, North Rhine-Westphalia, Germany

• 1st Department of General Surgery — Krakow, Malopolska, Poland

• Hopitaux Universitaires Bordet-Erasme - Institut Jules Bordet — Brussels, Belgium
• Hopitaux Universitaires Bordet-Erasme - Hopital Universitaire Erasme — Brussels, Belgium
• Cliniques Universitaires Saint-Luc — Brussels, Belgium
• Universitair Ziekenhuis Antwerpen — Edegem, Belgium

Not specified

• Seoul National University Hospital — Seoul, Jongno-gu, South Korea

• Asian Institute of Gastroenterology — Hyderabad, Telangana, India