1. Department of Pathology; Southern Medical University; Guangzhou Guangdong Province People's Republic of China
2. Guangdong Province Key Laboratory of Molecular Tumor Pathology; Guangzhou Guangdong Province People's Republic of China
3. Department of Pathology; the Affiliated Hospital of Southwest Medical University; Luzhou Sichuan Province China
4. Department of General Surgery, Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province People's Republic of China
5. Department of Gastroenterology; Nanfang Hospital, Southern Medical University; Guangzhou Guangdong Province People's Republic of China