Gastrointestinal Neoplasms

• Clinical Hospital Osijek; Dept For Oncology & Radiotherapy — Osijek, Croatia
• Uni Hospital Split; Oncology & Radiotherapy — Split, Croatia
• Clinical Hospital Centre Zagreb — Zagreb, Croatia
• Uni Hospital For Tumours; Dept of Medical Oncology — Zagreb, Croatia

Not specified

• Beatson West of Scotland Cancer Centre — Glasgow, Scotland, United Kingdom

• Kyungpook National University Hospital — Daegu, South Korea

• Department of Surgical Sciences, University of Torino — Turin, Piedmont, Italy

• Batna anticancer center — Algiers, Algeria
• Mohammed V University Medical School, Surgery Department, Military Hospital — Rabat, Please Enter the State Or Province, Morocco
• Mohammed V University Medical School, Surgical Department "A", Ibn Sina Hospital — Rabat, Please Enter the State Or Province, Morocco
• Mohammed V University Medical School, Surgical Department "C", Ibn Sina Hospital, — Rabat, Please Enter the State Or Province, Morocco

• University of North Carolina at Chapel Hill Lineberger Comprehensive Cancer Center — Chapel Hill, North Carolina, United States
• East Carolina Medical School — Greenville, North Carolina, United States

• Mayo Clinic Scottsdale — Scottsdale, Arizona, United States
• Saint Francis/Mount Sinai Regional Cancer Center at Saint Francis Hospital and Medical Center — Hartford, Connecticut, United States
• Mayo Clinic - Jacksonville — Jacksonville, Florida, United States
• Illinois CancerCare - Bloomington — Bloomington, Illinois, United States

• Case Comprehensive Cancer Center — Cleveland, Ohio, United States
• Metrohealth Medical Center — Cleveland, Ohio, United States

• Capital Medical University Cancer Center — Beijing, Beijing Municipality, China