Affiliation: | 1. Southern Medical University, Guangzhou 510515, China;2. Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China;3. Medical Research Center, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China;4. Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China |