1. Laboratory Department, Second Affiliated Hospital of Guizhou Medical University, Kaili 556000, Guizhou, PR China
2. Early Screening of Digestive Tract Tumors in the Department of Gastroenterology, The Second Affiliated Hospital of Guizhou Medical University, Kaili 556000, Guizhou, PR China
3. Hunan Tumor Hospital Department of Digestive Urology, Changsha 410006, Hunan, PR China
4. Department of Oncology, The Second Affiliated Hospital of Guizhou Medical University, Kaili 556000, Guizhou, PR China
5. Department of Gastroenterology, The Second Affiliated Hospital of Guizhou Medical University, Kaili 556000, Guizhou, PR China
6. Department of Science and Education and Department of Infection, The Second Affiliated Hospital of Guizhou Medical University, Kaili 556000, Guizhou, PR China
7. Department of Pathology, The Second Affiliated Hospital of Guizhou Medical University, Kaili 556000, Guizhou, PR China