Digestive System Neoplasms

• Sixth affiliated Hospital, Sun Yat-Sen University — Guangzhou, Guangdong, China
• Shanghai Zhongshan Hospital — Shanghai, Shanghai Municipality, China
• Tianjin Nankai Hospital — Tianjin, Tianjin Municipality, China
• Tianjin People's Hospital — Tianjin, Tianjin Municipality, China

• Respiratory Clinic, National Cancer Center — Goyang-si, Gyeonggi-do, South Korea

• University of Illinois at Chicago — Chicago, Illinois, United States
• Johns Hopkins Kimmel Cancer Center — Baltimore, Maryland, United States
• Regions Hospital — Saint Paul, Minnesota, United States

• Moscow Clinical scientific Center — Moscow, Entuziastov Shosse,86, Russia

Not specified

Not specified

• Fondazione IRCCS Istituto Nazionale Tumori — Milan, Italy

Not specified

• Department of Surgical Oncology - FPO-IRCCS Institute for Cancer Research and Treatment — Candiolo, Turin, Italy

• University of California, Los Angeles — Los Angeles, California, United States
• University of Colorado Cancer Center — Aurora, Colorado, United States
• The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins — Baltimore, Maryland, United States
• Dana-Farber/Harvard Cancer Center — Boston, Massachusetts, United States