4 Guangdong Provincial Key Laboratory of Gastroenterology and Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
5 Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.
6 Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China. liaowt2002@gmail.com.
7 Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China. liaowt2002@gmail.com.