Southern Medical University - Department of Gastroenterology, Shantou University - Department 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, 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 - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Shantou University - Department of Gastroenterology, Kunming University of Science and Technology - Department of Medical Oncology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology, 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 and Southern Medical University - Guangdong Provincial Key Laboratory of Gastroenterology