1 Department of Pathology, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou, China.
2 Department of Gastroenterology, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou, China.
3 Department of Pathology, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou, China. Electronic address: jlongfjslyy@163.com.