1. Department of Colorectal Surgical Oncology, The Tumor Hospital of Harbin Medical University, Harbin 150001, China
2. Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
3. Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
4. National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan 410008, China
5. Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China