1. Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
2. Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
3. Department of Medical Imaging, The First Affiliated Hospital of Anhui Medical University, Hefei, China
4. Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China