1. First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
2. Department of Anorectal Section, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, China
3. Department of Endocrinology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, China
4. Department of Colorectal Surgery, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, China
5. Department of Anorectal Section, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
6. Department of Colorectal Surgery, Hengyang Central Hospital, Hengyang, Hunan 421001, China
7. Department of Geriatrics, Hematology and Oncology Unit, Qilu Hospital of Shandong University, Jinan, China