Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Government of the People's Republic of China - Longgang District People's Hospital, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Kunming University of Science and Technology - Department of Medical Oncology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, University of South China - Faculty of Medicine, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Guangzhou Medical University - Third Affiliated Hospital, Southern Medical University - Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology and Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology