1. State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Fourth Medical Center of
PLA General Hospital, Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi’an, China
2. Fourth Medical Center
of PLA General Hospital, Xijing Hospital of Digestive Diseases, Air Force Medical University (Fourth Military Medical University),
Xi’an, China
3. School of Medicine, Yan’an University, Yan’an, China