1. Department of Oncology, Affiliated Nanhai Hospital of Southern Medical University Foshan, Oncology Section 2, Foshan, Guangdong, China (mainland)
2. Department of Traditional Chinese Medicine, Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China (mainland)
3. Department of Gastroenterology, Feicheng Mining Central Hospital, Feicheng, Taian, Shandong, China (mainland)